diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..c873106
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,17 @@
+Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
+
+Copyright (c) 2026 Luigi D'Acunto
+
+You are free to:
+  Share — copy and redistribute the material in any medium or format
+  Adapt — remix, transform, and build upon the material
+
+Under the following terms:
+  Attribution   — You must give appropriate credit, provide a link to the
+                  license, and indicate if changes were made.
+  NonCommercial — You may not use the material for commercial purposes.
+
+No additional restrictions — You may not apply legal terms or technological
+measures that legally restrict others from doing anything the license permits.
+
+Full license text: https://creativecommons.org/licenses/by-nc/4.0/legalcode
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dbdc410
--- /dev/null
+++ b/README.md
@@ -0,0 +1,139 @@
+# Checkmk SwissKnife
+
+A [Tampermonkey](https://www.tampermonkey.net/) userscript that enhances the Checkmk 2.3.x web interface with quality-of-life improvements for WATO configuration and monitoring views.
+
+## Installation
+
+1. Install the [Tampermonkey](https://www.tampermonkey.net/) browser extension.
+2. Install the script from one of these sources:
+
+   - [**GreasyFork**](https://greasyfork.org/en/scripts/585184-checkmk-swissknife) *(recommended)*
+   - [**Direct install**](https://luigidacunto.com/scripts/checkmk-swissknife/user_script/checkmk_swissknife.user.js)
+
+3. Tampermonkey will detect the `@downloadURL` and prompt for updates automatically.
+
+**Compatibility:** Checkmk 2.3.x · Chrome · Firefox · Edge
+
+## Features
+
+| Feature | Description | Code function |
+|---------|-------------|---------------|
+| **Folder Path Search** | Replaces the folder dropdown with a searchable overlay — type any path segment to filter instantly | `initSelect2Enhanced` |
+| **Accordion Badge Counts** | Shows inline counters in each accordion header: enabled checkboxes (orange), inherited values (blue), differing values vs folder default (red) | `initAccordionCheckedCounts` |
+| **Ineffective Rule Highlight** | Replaces the hard-to-spot hyphen icon on ineffective rules with a visible ⚠ badge and amber row border | `highlightIneffectiveRules` |
+| **Rule Match Status** | Colors each rule row green (match) or dimmed (no match) when a ruleset is opened with host/service context | `highlightRuleMatchStatus` |
+| **Relevant Only Filter** | Adds a "Relevant only" toggle above the rule list to hide all non-matching and non-highlighted rows | `addRulesetFilterToggle` |
+| **Extra Column — Host Actions** | Inserts an Extra column in monitoring tables with per-host buttons: Service Discovery, copy FQDN, copy short hostname, copy IP | `addInventoryButtons` |
+| **Monitor Button in WATO Folder** | Adds a green eye icon next to each active host in WATO folder listings to open its monitoring view in a new tab | `addWatoFolderMonitorButtons` |
+| **Configure in WATO Menu** | Adds a host-selector dropdown and Open button to the monitoring view menu bar for bulk-opening hosts in WATO | `addViewWatoMenu` |
+| **Auto-check Foreign Changes** | Automatically ticks the "Activate foreign changes" checkbox on the pending changes page | `tryAutoCheckForeignActivation` |
+| **Collapse All / Expand All** | Adds two buttons to the menu bar to collapse or expand all accordion sections at once | `addAccordionToggleButtons` |
+
+---
+
+### Folder Path Search
+Replaces the default WATO folder dropdown with a searchable overlay. Type any segment of the folder path to filter — separators `>`, `›`, and `/` are treated as equivalent.
+
+Applies to: rule condition editor (`explicit_conditions_p_folder_path`) and monitoring view folder filter (`wato_folder`).
+
+---
+
+### Accordion Badge Counts
+Displays inline counters in each accordion section header on host edit pages:
+
+| Badge | Meaning |
+|-------|---------|
+| **orange `(N)`** | N checkboxes enabled in this section |
+| **blue `↑N`** | N values inherited from a parent folder |
+| **red `≠N`** | N values that differ from the folder default *(bulk edit only)* |
+
+Applies to: `edit_host`, `bulkedit`, `editfolder`.
+
+---
+
+### Ineffective Rule Highlight
+Replaces the low-visibility hyphen icon on ineffective rules with a prominent **`⚠ ineffective`** badge and adds an amber left border to the row.
+
+Applies to: `mode=edit_ruleset`.
+
+---
+
+### Rule Match Status Highlight
+When a ruleset is opened in context (URL contains `host=` and/or `service=`), colors each rule row:
+
+- **Green + `✓ match`** — rule applies to the given host/service
+- **Dimmed + `✗ no match`** — rule does not apply
+
+Applies to: `mode=edit_ruleset` with host/service context.
+
+---
+
+### Ruleset Filter Toggle
+After match/ineffective highlighting runs, a **"Relevant only"** button appears above the rule list. Clicking it hides all non-highlighted rows and empty folders, leaving only the rules that matter for the current context.
+
+Applies to: `mode=edit_ruleset` (when at least one highlighted row exists).
+
+---
+
+### Extra Column with Host Actions
+Adds a dedicated **Extra** column before the Host column in all monitoring view tables. Each row gets up to four icon buttons:
+
+| Button | Color | Action |
+|--------|-------|--------|
+| Screen icon | Amber | Opens **Service Discovery** for the host in a new tab |
+| Clipboard icon | Blue | Copies the full FQDN to clipboard |
+| Clipboard icon | Purple | Copies the short hostname (first label) to clipboard |
+| Clipboard icon | Green | Copies the host **IP address** to clipboard *(shown only when available)* |
+
+The IP address is read from the tooltip Checkmk places on the hostname cell. Clicking any clipboard button briefly turns it green to confirm the copy.
+
+Applies to: `view.py` host and service views.
+
+---
+
+### Monitor Button on WATO Folder Pages
+Adds a green eye icon next to each active (non-disabled) host in WATO folder listings, opening the host's monitoring view in a new tab. A summary badge on the section header shows monitored vs disabled host counts.
+
+Applies to: `wato.py?mode=folder`.
+
+---
+
+### "Configure in WATO" Menu
+Adds a **Select hosts (N)** dropdown and an **Open** button to the monitoring view menu bar. Select a page of hosts, then click **Open** — WATO opens in a new tab with exactly those hosts pre-filtered via regex search, ready for bulk configuration.
+
+- Up to 50 hosts per page (keeps URLs within safe length limits)
+- Deduplicates hostnames automatically (useful on service views where hosts repeat)
+- **Open** button is disabled (gray) until a page is selected; turns blue when active; resets after opening
+- Only visible for users with WATO configuration access
+
+Applies to: `view.py` (admin/configuration role required).
+
+---
+
+### Auto-check "Activate Foreign Changes"
+On the **Activate pending changes** page, automatically checks the *Activate foreign changes* checkbox as soon as the page is ready, so you never have to remember to tick it manually before activating.
+
+Applies to: `wato.py?mode=changelog` (with or without sidebar).
+
+---
+
+### Collapse All / Expand All
+Adds two buttons to the top menu bar on any page with expandable sections:
+
+| Button | Color | Action |
+|--------|-------|--------|
+| **Collapse All** | Orange | Collapses all open accordion sections at once |
+| **Expand All** | Green | Expands all collapsed accordion sections at once |
+
+Works on both host-edit pages (accordion sections are `table.nform` elements) and ruleset pages (accordion sections are `div.foldable` elements).
+
+Applies to: `edit_host`, `bulkedit`, `editfolder`, `edit_ruleset` (with or without sidebar).
+
+## How it works
+
+The script injects enhancements at page load and re-applies them on SPA navigation (Checkmk reloads content inside an `<iframe>` without a full page reload). Each feature is independent — a feature that does not apply to the current page does nothing and stops polling.
+
+## License
+
+[CC BY-NC 4.0](LICENSE) — free to use, share, and adapt for non-commercial purposes.
+Commercial use or resale is not permitted.
diff --git a/user_script/checkmk_swissknife.user.js b/user_script/checkmk_swissknife.user.js
index 13c2cb0..44d4dad 100644
--- a/user_script/checkmk_swissknife.user.js
+++ b/user_script/checkmk_swissknife.user.js
@@ -1,43 +1,63 @@
-// ==UserScript==
+// ==UserScript==
 // @name         Checkmk SwissKnife
 // @namespace    https://luigidacunto.com/
-// @version      2.0
-// @description  Raccolta di miglioramenti all'interfaccia di Checkmk WATO. Ogni fix o enhancement viene aggiunto qui come feature indipendente.
+// @version      2.15.3
+// @checkmk      2.3.x
+// @description  Collection of UI improvements for Checkmk WATO. Each fix or enhancement is added here as an independent feature.
 // @author       Luigi D'Acunto
-// @homepageURL  https://gitlab.luigidacunto.com/consultant/checkmk-swissknife
+// @homepageURL  https://github.com/luigidacunto/checkmk-swissknife
 // @updateURL    https://luigidacunto.com/scripts/checkmk-swissknife/user_script/checkmk_swissknife.user.js
 // @downloadURL  https://luigidacunto.com/scripts/checkmk-swissknife/user_script/checkmk_swissknife.user.js
-// @include      /^https?:\/\/.+\/check_mk\/(index|wato)\.py/
+// @include      /^https?:\/\/.+\/check_mk\/(index|wato|view)\.py/
 // @grant        none
+// @license      CC-BY-NC-4.0
 // ==/UserScript==
 
 (function () {
   'use strict';
 
   // =========================================================================
-  // INFRASTRUTTURA COMUNE
+  // COMMON INFRASTRUCTURE
   // =========================================================================
 
   const LOG_PREFIX = '[CMK-SK]';
   const POLL_INTERVAL_MS = 500;
   const MAX_ATTEMPTS     = 60;
 
-  // Ricava il documento su cui operare:
-  // - Se c'è un iframe (index.py con sidebar) → usa il contentDocument dell'iframe
-  // - Se wato.py è aperto direttamente → usa document solo se contiene la select target
+  // Returns the document to operate on:
+  // - If there is an iframe (index.py with sidebar) → use iframe's contentDocument
+  // - If wato.py is opened directly → use document only if it contains the target select
   function getWatoDoc(selectId) {
     const iframe = document.querySelector('iframe[name="main"], iframe#main');
     if (iframe) {
       try { return iframe.contentDocument; } catch (e) { return null; }
     }
     if (document.getElementById(selectId) ||
-        document.querySelector('select[name*="folder_path"]')) {
+        document.querySelector('select[name*="folder_path"]') ||
+        document.getElementById('wato_folder')) {
       return document;
     }
     return null;
   }
 
-  // Inietta CSS nel documento target (una sola volta, deduplica per id)
+  // Reads the "mode" parameter from the target document URL without accessing the DOM
+  function getPageMode(iDoc) {
+    try { return new URLSearchParams(iDoc.location.search).get('mode') || ''; }
+    catch (e) { return ''; }
+  }
+
+  // Returns the document to operate on, handling both the iframe case (index.py with
+  // sidebar) and the direct case (wato.py opened without sidebar, no iframe present).
+  function getTargetDoc() {
+    const iframe = document.querySelector('iframe[name="main"], iframe#main');
+    if (iframe) { try { return iframe.contentDocument; } catch (e) { return null; } }
+    return document;
+  }
+
+  // Pages that support accordion badges (same form_edit_host + table.nform structure)
+  const ACCORDION_MODES = new Set(['edit_host', 'bulkedit', 'editfolder']);
+
+  // Injects CSS into the target document (once only, deduplicated by id)
   function injectStyles(iDoc, id, css) {
     if (iDoc.getElementById(id)) return;
     const style = iDoc.createElement('style');
@@ -50,9 +70,9 @@
   // =========================================================================
   // FEATURE: Folder Path Select Enhancement
   //
-  // Migliora la <select> del folder path in WATO mostrando il path completo
-  // in stile "Radice › Livello › Foglia" e abilitando la ricerca su di esso.
-  // Si attiva solo quando la select #explicit_conditions_p_folder_path è presente.
+  // Improves the folder path <select> in WATO by showing the full path
+  // in "Root › Level › Leaf" style and enabling search on it.
+  // Only activates when the #explicit_conditions_p_folder_path select is present.
   // =========================================================================
 
   const FOLDER_SELECT_ID = 'explicit_conditions_p_folder_path';
@@ -87,7 +107,7 @@
       const existing = getSelect2Instance(iDoc, sel);
       if (existing && typeof existing.destroy === 'function') existing.destroy();
     } catch (e) {
-      console.warn(LOG_PREFIX, 'Impossibile distruggere Select2:', e);
+      console.warn(LOG_PREFIX, 'Failed to destroy Select2:', e);
     }
 
     initSelect2Enhanced(iDoc, sel);
@@ -149,7 +169,7 @@
         injectFolderStyles(iDoc);
         return;
       } catch (e) {
-        console.warn(LOG_PREFIX, 'jQuery Select2 init fallita:', e);
+        console.warn(LOG_PREFIX, 'jQuery Select2 init failed:', e);
       }
     }
 
@@ -159,16 +179,16 @@
         injectFolderStyles(iDoc);
         return;
       } catch (e) {
-        console.warn(LOG_PREFIX, 'Select2 standalone init fallita:', e);
+        console.warn(LOG_PREFIX, 'Select2 standalone init failed:', e);
       }
     }
 
-    // Fallback: overlay di ricerca custom sopra il select2 nativo
+    // Fallback: custom search overlay over the native select2
     buildCustomSearchOverlay(iDoc, sel);
   }
 
-  function buildCustomSearchOverlay(iDoc, sel) {
-    const divContainer = iDoc.getElementById(FOLDER_DIV_ID);
+  function buildCustomSearchOverlay(iDoc, sel, containerEl) {
+    const divContainer = containerEl || iDoc.getElementById(FOLDER_DIV_ID);
     if (!divContainer) return;
     if (divContainer.querySelector('.cmk-sk-folder-overlay')) return;
 
@@ -194,7 +214,7 @@
 
     const searchInput = iDoc.createElement('input');
     searchInput.type = 'text';
-    searchInput.placeholder = 'Cerca folder per nome o path... (es: veeam, dc1/veeam)';
+    searchInput.placeholder = 'Search folder by name or path... (e.g.: veeam, dc1/veeam)';
     searchInput.autocomplete = 'off';
     searchInput.spellcheck = false;
     searchInput.style.cssText = `
@@ -254,17 +274,20 @@
     function renderDropdown(filter) {
       dropdown.innerHTML = '';
       const term = filter.trim().toLowerCase();
+      // Normalize separators: >, ›, / are equivalent in search
+      const normTerm = term.replace(/\s*[>/›]\s*/g, '/');
       const filtered = term
         ? options.filter(o =>
             o.label.toLowerCase().includes(term) ||
-            o.value.toLowerCase().includes(term) ||
+            o.label.toLowerCase().replace(/\s*›\s*/g, '/').includes(normTerm) ||
+            o.value.toLowerCase().includes(normTerm) ||
             o.original.toLowerCase().includes(term)
           )
         : options;
 
       if (filtered.length === 0) {
         const noRes = iDoc.createElement('div');
-        noRes.textContent = 'Nessun risultato';
+        noRes.textContent = 'No results';
         noRes.style.cssText = 'padding: 6px 10px; color: #aaa;';
         dropdown.appendChild(noRes);
       }
@@ -316,7 +339,7 @@
 
       if (filtered.length > 200) {
         const more = iDoc.createElement('div');
-        more.textContent = `... e altri ${filtered.length - 200} risultati. Raffina la ricerca.`;
+        more.textContent = `... and ${filtered.length - 200} more results. Refine your search.`;
         more.style.cssText = 'padding: 6px 10px; color: #aaa; font-style: italic;';
         dropdown.appendChild(more);
       }
@@ -383,6 +406,7 @@
     divContainer.appendChild(wrapper);
     divContainer.appendChild(badge);
 
+    sel.dataset.cmkEnhanced = '1';
     injectFolderStyles(iDoc);
   }
 
@@ -407,35 +431,935 @@
 
 
   // =========================================================================
-  // BOOTSTRAP: polling per ogni feature, attivato solo se la select è presente
+  // FEATURE: Accordion Checked Count Badge
+  //
+  // Shows in each accordion title on the edit_host page the number
+  // of active checkboxes in the group. E.g.: "Services - DB (1)".
+  // The counter updates in real time when checkboxes change.
   // =========================================================================
 
-  let attempts = 0;
+  function updateAccordionBadge(td) {
+    const table = td.closest('table.nform');
+    if (!table) return;
+    const tbody = table.querySelector('tbody');
+    if (!tbody) return;
+    const checked = tbody.querySelectorAll('input[type=checkbox]:checked').length;
+    const badge = td.querySelector('.cmk-sk-acc-count');
+    if (!badge) return;
+    if (checked > 0) {
+      badge.textContent = `(${checked})`;
+      badge.style.display = 'inline';
+    } else {
+      badge.style.display = 'none';
+    }
+  }
+
+  function updateInheritedBadge(td, iWin) {
+    const table = td.closest('table.nform');
+    if (!table) return;
+    const tbody = table.querySelector('tbody');
+    if (!tbody) return;
+    const count = Array.from(tbody.querySelectorAll('div.inherited')).filter(el =>
+      iWin.getComputedStyle(el).display !== 'none' && el.textContent.includes('Inherited from')
+    ).length;
+    const badge = td.querySelector('.cmk-sk-inh-count');
+    if (!badge) return;
+    if (count > 0) {
+      badge.textContent = `↑${count}`;
+      badge.style.display = 'inline';
+    } else {
+      badge.style.display = 'none';
+    }
+  }
+
+  function updateDiffBadge(td, iWin) {
+    const table = td.closest('table.nform');
+    if (!table) return;
+    const tbody = table.querySelector('tbody');
+    if (!tbody) return;
+    const count = Array.from(tbody.querySelectorAll('div.inherited')).filter(el =>
+      iWin.getComputedStyle(el).display !== 'none' && el.textContent.includes('This value differs')
+    ).length;
+    const badge = td.querySelector('.cmk-sk-diff-count');
+    if (!badge) return;
+    if (count > 0) {
+      badge.textContent = `≠${count}`;
+      badge.style.display = 'inline';
+    } else {
+      badge.style.display = 'none';
+    }
+  }
+
+  function initAccordionCheckedCounts(iDoc) {
+    const form = iDoc.getElementById('form_edit_host');
+    if (!form) return false;
+    if (form.dataset.cmkAccBadge === '1') return true;
+
+    const iWin = iDoc.defaultView;
+    const isBulkEdit = getPageMode(iDoc) === 'bulkedit';
+
+    injectStyles(iDoc, 'cmk-sk-acc-badge-styles', `
+      .cmk-sk-acc-count {
+        margin-left: 6px;
+        padding: 1px 6px;
+        background: #f0a500;
+        color: #000;
+        border-radius: 9px;
+        font-size: 11px;
+        font-weight: bold;
+        vertical-align: middle;
+      }
+      .cmk-sk-inh-count {
+        margin-left: 4px;
+        padding: 1px 6px;
+        background: #5ba4e5;
+        color: #000;
+        border-radius: 9px;
+        font-size: 11px;
+        font-weight: bold;
+        vertical-align: middle;
+      }
+      .cmk-sk-diff-count {
+        margin-left: 4px;
+        padding: 1px 6px;
+        background: #e55b5b;
+        color: #fff;
+        border-radius: 9px;
+        font-size: 11px;
+        font-weight: bold;
+        vertical-align: middle;
+      }
+    `);
+
+    iDoc.querySelectorAll('table.nform thead tr.heading td').forEach(td => {
+      const table = td.closest('table.nform');
+      const tbody = table?.querySelector('tbody');
+      if (!tbody) return;
+
+      const badge = iDoc.createElement('span');
+      badge.className = 'cmk-sk-acc-count';
+      badge.style.display = 'none';
+
+      const badgeInh = iDoc.createElement('span');
+      badgeInh.className = 'cmk-sk-inh-count';
+      badgeInh.style.display = 'none';
+
+      const img = td.querySelector('img.treeangle');
+      const afterImg = img?.nextSibling;
+      if (afterImg) {
+        afterImg.after(badge);
+        badge.after(badgeInh);
+      } else {
+        td.appendChild(badge);
+        td.appendChild(badgeInh);
+      }
+
+      if (isBulkEdit) {
+        const badgeDiff = iDoc.createElement('span');
+        badgeDiff.className = 'cmk-sk-diff-count';
+        badgeDiff.style.display = 'none';
+        badgeInh.after(badgeDiff);
+      }
+
+      updateAccordionBadge(td);
+      updateInheritedBadge(td, iWin);
+      if (isBulkEdit) updateDiffBadge(td, iWin);
+
+      tbody.addEventListener('change', (e) => {
+        if (e.target.type === 'checkbox') {
+          updateAccordionBadge(td);
+          updateInheritedBadge(td, iWin);
+          if (isBulkEdit) updateDiffBadge(td, iWin);
+        }
+      });
+    });
+
+    form.dataset.cmkAccBadge = '1';
+    return true;
+  }
+
+
+  // =========================================================================
+  // FEATURE: Ineffective Rule Highlight
+  //
+  // In mode=edit_ruleset pages, replaces the barely visible
+  // "icon_hyphen.svg" (title="Ineffective rule") icon with a colored badge
+  // and adds a left border to the row.
+  // Works on both direct wato.py (no iframe) and inside index.py (iframe).
+  // =========================================================================
+
+  function highlightIneffectiveRules(doc) {
+    if (doc.body.dataset.cmkIneffHighlight === '1') return;
+
+    const imgs = doc.querySelectorAll('img.icon[title="Ineffective rule"]');
+    if (!imgs.length) return;
+
+    injectStyles(doc, 'cmk-sk-ineff-styles', `
+      tr.cmk-sk-ineffective > td:first-child {
+        border-left: 4px solid #e5a500 !important;
+      }
+      tr.cmk-sk-ineffective {
+        background: rgba(229, 165, 0, 0.08) !important;
+      }
+      .cmk-sk-ineff-badge {
+        display: inline-block;
+        background: #e5a500;
+        color: #000;
+        font-size: 10px;
+        font-weight: bold;
+        padding: 2px 6px;
+        border-radius: 3px;
+        white-space: nowrap;
+        font-family: monospace;
+        vertical-align: middle;
+        cursor: default;
+        letter-spacing: 0.03em;
+      }
+    `);
+
+    imgs.forEach(img => {
+      const row = img.closest('tr');
+      if (!row || row.classList.contains('cmk-sk-ineffective')) return;
+      row.classList.add('cmk-sk-ineffective');
+
+      const badge = doc.createElement('span');
+      badge.className = 'cmk-sk-ineff-badge';
+      badge.title = 'Ineffective rule';
+      badge.textContent = '⚠ ineffective';
+      img.replaceWith(badge);
+    });
+
+    doc.body.dataset.cmkIneffHighlight = '1';
+  }
+
+
+  // =========================================================================
+  // FEATURE: Rule Match Status Highlight
+  //
+  // In mode=edit_ruleset pages opened with host/service context (host= and
+  // service= parameters in the URL), highlights matching rows (green) and
+  // dims non-matching ones (grey), replacing the barely visible icon_checkmark
+  // and icon_hyphen icons with colored badges.
+  // =========================================================================
+
+  function highlightRuleMatchStatus(doc) {
+    if (doc.body.dataset.cmkMatchHighlight === '1') return;
+
+    const matchImgs   = doc.querySelectorAll('img.icon[title^="This rule matches"], img.icon[title="Matches"]');
+    const noMatchImgs = doc.querySelectorAll('img.icon[title^="This rule does not match"]');
+    if (!matchImgs.length && !noMatchImgs.length) return;
+
+    injectStyles(doc, 'cmk-sk-match-styles', `
+      tr.cmk-sk-rule-match > td:first-child {
+        border-left: 4px solid #4caf50 !important;
+      }
+      tr.cmk-sk-rule-match {
+        background: rgba(76, 175, 80, 0.10) !important;
+      }
+      tr.cmk-sk-rule-nomatch {
+        opacity: 0.45;
+      }
+      tr.cmk-sk-rule-nomatch > td:first-child {
+        border-left: 4px solid #555 !important;
+      }
+      .cmk-sk-match-badge {
+        display: inline-block;
+        background: #4caf50;
+        color: #fff;
+        font-size: 10px;
+        font-weight: bold;
+        padding: 2px 6px;
+        border-radius: 3px;
+        white-space: nowrap;
+        font-family: monospace;
+        vertical-align: middle;
+        cursor: default;
+        letter-spacing: 0.03em;
+      }
+      .cmk-sk-nomatch-badge {
+        display: inline-block;
+        background: #444;
+        color: #888;
+        font-size: 10px;
+        font-weight: bold;
+        padding: 2px 6px;
+        border-radius: 3px;
+        white-space: nowrap;
+        font-family: monospace;
+        vertical-align: middle;
+        cursor: default;
+        letter-spacing: 0.03em;
+      }
+    `);
+
+    matchImgs.forEach(img => {
+      const row = img.closest('tr');
+      if (!row) return;
+      row.classList.add('cmk-sk-rule-match');
+      const badge = doc.createElement('span');
+      badge.className = 'cmk-sk-match-badge';
+      badge.title = img.title;
+      badge.textContent = '✓ match';
+      img.replaceWith(badge);
+    });
+
+    noMatchImgs.forEach(img => {
+      const row = img.closest('tr');
+      if (!row) return;
+      row.classList.add('cmk-sk-rule-nomatch');
+      const badge = doc.createElement('span');
+      badge.className = 'cmk-sk-nomatch-badge';
+      badge.title = img.title;
+      badge.textContent = '✗ no match';
+      img.replaceWith(badge);
+    });
+
+    doc.body.dataset.cmkMatchHighlight = '1';
+  }
+
+
+  // =========================================================================
+  // FEATURE: Ruleset Filter Toggle
+  //
+  // After the highlight functions have marked the relevant rows
+  // (match, no-match, ineffective), adds a bar at the top with a button
+  // to hide rows and folders with no relevance. Useful on pages with
+  // hundreds of rules where only a few are relevant.
+  // =========================================================================
+
+  function addRulesetFilterToggle(doc) {
+    if (doc.body.dataset.cmkFilterToggle === '1') return;
+    doc.body.dataset.cmkFilterToggle = '1';
+
+    const RELEVANT_SEL = 'tr.cmk-sk-rule-match, tr.cmk-sk-rule-nomatch, tr.cmk-sk-ineffective';
+
+    // No highlighted rows = no active search, toggle is useless
+    const relevantCount = doc.querySelectorAll(RELEVANT_SEL).length;
+    if (!relevantCount) return;
+
+    doc.querySelectorAll('tr.data').forEach(row => {
+      if (!row.matches(RELEVANT_SEL)) row.classList.add('cmk-sk-irrelevant-row');
+    });
+
+    doc.querySelectorAll('div.foldable_wrapper').forEach(wrapper => {
+      if (!wrapper.querySelector(RELEVANT_SEL)) wrapper.classList.add('cmk-sk-irrelevant-folder');
+    });
+
+    const irrelevantRows    = doc.querySelectorAll('tr.cmk-sk-irrelevant-row').length;
+    const irrelevantFolders = doc.querySelectorAll('div.foldable_wrapper.cmk-sk-irrelevant-folder').length;
+
+    if (!irrelevantRows && !irrelevantFolders) return;
+
+    injectStyles(doc, 'cmk-sk-filter-toggle-styles', `
+      #cmk-sk-filter-bar {
+        display: flex;
+        align-items: center;
+        gap: 10px;
+        padding: 5px 10px;
+        margin: 6px 0 4px 0;
+        background: rgba(0,0,0,0.25);
+        border: 1px solid #3a3a3a;
+        border-radius: 4px;
+        font-size: 11px;
+        color: #999;
+        font-family: monospace;
+      }
+      #cmk-sk-filter-toggle-btn {
+        cursor: pointer;
+        padding: 3px 10px;
+        border-radius: 3px;
+        border: 1px solid #555;
+        background: #2a2a2a;
+        color: #bbb;
+        font-size: 11px;
+        font-family: monospace;
+        font-weight: bold;
+        letter-spacing: 0.03em;
+      }
+      #cmk-sk-filter-toggle-btn:hover { background: #383838; }
+      #cmk-sk-filter-toggle-btn.active {
+        background: #1c3320;
+        border-color: #4caf50;
+        color: #4caf50;
+      }
+      body.cmk-sk-filter-active tr.cmk-sk-irrelevant-row { display: none !important; }
+      body.cmk-sk-filter-active div.foldable_wrapper.cmk-sk-irrelevant-folder { display: none !important; }
+    `);
+
+    const bar = doc.createElement('div');
+    bar.id = 'cmk-sk-filter-bar';
+
+    const btn = doc.createElement('button');
+    btn.id = 'cmk-sk-filter-toggle-btn';
+    btn.type = 'button';
+    btn.textContent = 'Relevant only';
+
+    const info = doc.createElement('span');
+    info.textContent = `${relevantCount} relevant · ${irrelevantRows} rows and ${irrelevantFolders} folders not relevant`;
+
+    btn.addEventListener('click', () => {
+      const isActive = doc.body.classList.toggle('cmk-sk-filter-active');
+      btn.classList.toggle('active', isActive);
+      btn.textContent = isActive ? 'Show all' : 'Relevant only';
+    });
+
+    bar.appendChild(btn);
+    bar.appendChild(info);
+
+    const anchor = doc.querySelector('div.foldable_wrapper') || doc.querySelector('div.wato');
+    if (anchor) anchor.before(bar);
+  }
+
+
+  // =========================================================================
+  // FEATURE: Inventory Button on view.py
+  //
+  // In view.py pages (monitoring views), adds a small button next to each
+  // hostname in the Host column to directly open the host's Service Discovery
+  // page in a new tab.
+  // =========================================================================
+
+  function addInventoryButtons(doc) {
+    if (doc.body.dataset.cmkInventoryBtns === '1') return;
+
+    const tables = doc.querySelectorAll('table.data');
+    if (!tables.length) return;
+
+    injectStyles(doc, 'cmk-sk-inv-btn-styles', `
+      .cmk-sk-extra-th { text-align: center; padding: 2px 6px; font-size: 11px; white-space: nowrap; }
+      .cmk-sk-extra-td { white-space: nowrap; padding: 1px 4px; vertical-align: middle; text-align: center; }
+      .cmk-sk-btn-group { display: inline-flex; align-items: center; gap: 2px; }
+      .cmk-sk-inv-btn, .cmk-sk-copy-btn, .cmk-sk-copy-short-btn, .cmk-sk-copy-ip-btn {
+        display: inline-flex !important;
+        align-items: center !important;
+        justify-content: center !important;
+        width: 16px !important;
+        height: 16px !important;
+        border-radius: 3px !important;
+        cursor: pointer !important;
+        opacity: 0.8;
+        padding: 0 !important;
+        margin: 1px !important;
+        box-sizing: border-box !important;
+        text-decoration: none !important;
+        font-size: 0 !important;
+        line-height: 0 !important;
+        vertical-align: middle !important;
+      }
+      .cmk-sk-inv-btn, .cmk-sk-inv-btn:visited {
+        background: rgba(229,165,0,0.08) !important;
+        color: #e5a500 !important;
+        border: 1px solid #e5a500 !important;
+      }
+      .cmk-sk-inv-btn:hover { opacity: 1 !important; background: rgba(229,165,0,0.18) !important; }
+      .cmk-sk-copy-btn { background: rgba(90,180,214,0.08) !important; color: #5ab4d6 !important; border: 1px solid #5ab4d6 !important; }
+      .cmk-sk-copy-btn:hover { opacity: 1; background: rgba(90,180,214,0.18) !important; }
+      .cmk-sk-copy-short-btn { background: rgba(160,120,200,0.08) !important; color: #a078c8 !important; border: 1px solid #a078c8 !important; }
+      .cmk-sk-copy-short-btn:hover { opacity: 1; background: rgba(160,120,200,0.18) !important; }
+      .cmk-sk-copy-ip-btn { background: rgba(102,187,106,0.08) !important; color: #66bb6a !important; border: 1px solid #66bb6a !important; }
+      .cmk-sk-copy-ip-btn:hover { opacity: 1; background: rgba(102,187,106,0.18) !important; }
+      .cmk-sk-copy-btn.copied, .cmk-sk-copy-short-btn.copied, .cmk-sk-copy-ip-btn.copied {
+        border-color: #4caf50 !important;
+        color: #4caf50 !important;
+        background: rgba(76,175,80,0.12) !important;
+        opacity: 1;
+      }
+      .cmk-sk-btn-group svg { display: block; }
+    `);
+
+    const CLIP_SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round"><rect x="9" y="9" width="13" height="13" rx="2"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/></svg>';
+    const DISC_SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round"><rect x="2" y="3" width="20" height="14" rx="2"/><line x1="8" y1="21" x2="16" y2="21"/><line x1="12" y1="17" x2="12" y2="21"/><polyline points="6 9 9 12 14 7" stroke-width="2"/></svg>';
+
+    function mkCopy(cls, text, label) {
+      const b = doc.createElement('button');
+      b.className = cls; b.type = 'button'; b.title = label; b.innerHTML = CLIP_SVG;
+      b.addEventListener('click', () => navigator.clipboard.writeText(text).then(() => {
+        b.classList.add('copied'); setTimeout(() => b.classList.remove('copied'), 900);
+      }));
+      return b;
+    }
+
+    let found = false;
+
+    tables.forEach(table => {
+      // Trova indice colonna host dalla prima riga dati con link host
+      let hostColIdx = -1;
+      for (const tr of table.querySelectorAll('tr.data')) {
+        const cells = [...tr.children];
+        for (let i = 0; i < cells.length; i++) {
+          if (!cells[i].classList.contains('nobr')) continue;
+          const a = cells[i].querySelector('a[href*="host="]');
+          if (!a) continue;
+          const h = new URLSearchParams(a.getAttribute('href').split('?')[1] || '').get('host');
+          if (h) { hostColIdx = i; break; }
+        }
+        if (hostColIdx !== -1) break;
+      }
+      if (hostColIdx === -1) return;
+
+      found = true;
+
+      // Inserisci <th>Extra</th> nell'header (primo tr con th figli)
+      const headerRow = [...table.querySelectorAll('tr')].find(tr => tr.querySelector('th'));
+      if (headerRow && !headerRow.querySelector('.cmk-sk-extra-th')) {
+        const th = doc.createElement('th');
+        th.textContent = 'Extra';
+        th.className = 'cmk-sk-extra-th';
+        headerRow.insertBefore(th, [...headerRow.children][hostColIdx] || null);
+      }
+
+      // Aggiorna colspan dei groupheader
+      table.querySelectorAll('tr.groupheader td[colspan]').forEach(td => { td.colSpan++; });
+
+      // Processa righe dati
+      table.querySelectorAll('tr.data').forEach(tr => {
+        if (tr.querySelector('.cmk-sk-extra-td')) return;
+        const cells = [...tr.children];
+        const hostTd = cells[hostColIdx];
+        const extraTd = doc.createElement('td');
+        extraTd.className = 'cmk-sk-extra-td';
+
+        if (hostTd && hostTd.classList.contains('nobr')) {
+          const a = hostTd.querySelector('a[href*="host="]');
+          // IP è nel title dello span che wrappa l'anchor: <span title="x.x.x.x"><a>...</a></span>
+          const ip = (hostTd.querySelector('span[title]') || {}).title || null;
+          if (a) {
+            const h = new URLSearchParams(a.getAttribute('href').split('?')[1] || '').get('host');
+            if (h) {
+              const hostname = h, shortname = h.split('.')[0];
+              const group = doc.createElement('span');
+              group.className = 'cmk-sk-btn-group';
+
+              const disc = doc.createElement('a');
+              disc.className = 'cmk-sk-inv-btn';
+              disc.href = `wato.py?host=${encodeURIComponent(hostname)}&mode=inventory`;
+              disc.target = '_blank'; disc.rel = 'noopener';
+              disc.title = `Service Discovery: ${hostname}`;
+              disc.innerHTML = DISC_SVG;
+
+              group.appendChild(disc);
+              group.appendChild(mkCopy('cmk-sk-copy-btn', hostname, `Copy hostname: ${hostname}`));
+              group.appendChild(mkCopy('cmk-sk-copy-short-btn', shortname, `Copy short hostname: ${shortname}`));
+              if (ip) group.appendChild(mkCopy('cmk-sk-copy-ip-btn', ip, `Copy IP: ${ip}`));
+
+              extraTd.appendChild(group);
+            }
+          }
+        }
+        tr.insertBefore(extraTd, hostTd || null);
+      });
+    });
+
+    if (found) doc.body.dataset.cmkInventoryBtns = '1';
+  }
+
+
+  // =========================================================================
+  // FEATURE: Monitor Button on wato.py (mode=folder)
+  //
+  // In WATO folder pages, adds a small button next to the hostname of each
+  // active (non-disabled) host to open the monitoring view in a new tab.
+  // The button occupies the space where the X icon appears for disabled hosts,
+  // maintaining column alignment.
+  // =========================================================================
+
+  function addWatoFolderMonitorButtons(doc) {
+    if (doc.body.dataset.cmkFolderMonBtns === '1') return;
+
+    const base = doc.location.pathname.replace(/[^/]*$/, '');
+
+    injectStyles(doc, 'cmk-sk-folder-mon-btn-styles', `
+      .cmk-sk-mon-btn, .cmk-sk-mon-btn:visited {
+        display: inline-flex !important;
+        align-items: center !important;
+        justify-content: center !important;
+        width: 20px !important;
+        height: 20px !important;
+        border-radius: 3px !important;
+        cursor: pointer !important;
+        opacity: 0.85;
+        flex-shrink: 0;
+        padding: 0 !important;
+        margin: 0 !important;
+        box-sizing: border-box !important;
+        text-decoration: none !important;
+        font-size: 0 !important;
+        line-height: 0 !important;
+        vertical-align: middle !important;
+        background: rgba(76,175,80,0.1) !important;
+        color: #4caf50 !important;
+        border: 1px solid #4caf50 !important;
+      }
+      .cmk-sk-mon-btn:hover { opacity: 1 !important; background: rgba(76,175,80,0.22) !important; }
+      .cmk-sk-mon-btn svg { display: block; }
+    `);
+
+    const EYE_SVG = '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z"/><circle cx="12" cy="12" r="3"/></svg>';
+
+    let active = 0, disabled = 0;
+    doc.querySelectorAll('table.data td').forEach(td => {
+      // Hostname cell: contains exactly one link with mode=edit_host whose text is the hostname
+      const links = td.querySelectorAll('a[href*="mode=edit_host"]');
+      if (links.length !== 1) return;
+      const link = links[0];
+      const hostname = new URLSearchParams((link.getAttribute('href') || '').split('?')[1] || '').get('host');
+      if (!hostname || link.textContent.trim() !== hostname) return;
+
+      // Skip disabled hosts (they have an img with title="This host is disabled" in the same cell)
+      if (td.querySelector('img[title="This host is disabled"]')) { disabled++; return; }
+
+      // Prevent duplicate insertion
+      if (td.querySelector('.cmk-sk-mon-btn')) return;
+
+      const viewUrl = base + 'view.py?host=' + encodeURIComponent(hostname) + '&view_name=host';
+      const href = base + 'index.py?start_url=' + encodeURIComponent(viewUrl);
+
+      const btn = doc.createElement('a');
+      btn.className = 'cmk-sk-mon-btn';
+      btn.href = href;
+      btn.target = '_blank';
+      btn.rel = 'noopener';
+      btn.title = `Monitoring: ${hostname}`;
+      btn.innerHTML = EYE_SVG;
+      td.insertBefore(btn, link);
+      td.insertBefore(doc.createTextNode(' '), link);
+      active++;
+    });
+
+    const h3 = doc.querySelector('h3.table');
+    if (h3 && !h3.querySelector('.cmk-sk-folder-summary')) {
+      const summary = doc.createElement('span');
+      summary.className = 'cmk-sk-folder-summary';
+      summary.style.cssText = 'float:right;font-size:12px;font-weight:normal;opacity:0.75;letter-spacing:0.02em;';
+      summary.innerHTML =
+        '<span style="color:#4caf50">&#9679; ' + active + ' monitorati</span>' +
+        '<span style="margin:0 6px;opacity:0.4;">|</span>' +
+        '<span style="color:#e05050">&#9679; ' + disabled + ' disabilitati</span>';
+      h3.appendChild(summary);
+    }
+
+    if (active > 0 || disabled > 0) doc.body.dataset.cmkFolderMonBtns = '1';
+  }
+
+
+  // =========================================================================
+  // FEATURE: "Configure in WATO" menu on view.py
+  //
+  // Adds a paginated <select> to the menu bar (Commands/Hosts/Export/...) of
+  // live monitoring views. Each option opens WATO with a group of up to 50
+  // hosts, pre-filtered by exact hostname via regex ~^(h1|h2|...)$.
+  // =========================================================================
+
+  const WATO_PAGE_SIZE = 50;
+
+  // True if the current user has WATO access (admin/configuration role).
+  // With sidebar: outer document has wato.py links in Setup nav.
+  // Without sidebar: any wato.py link in the page suffices (incl. injected Extra column buttons).
+  function hasWatoAccess(doc) {
+    if (document !== doc && document.querySelector('a[href*="wato.py"]')) return true;
+    if (doc.querySelector('a[href*="wato.py"]')) return true;
+    return false;
+  }
+
+  function addViewWatoMenu(doc) {
+    if (doc.body.dataset.cmkViewWatoMenu === '1') return;
+    doc.body.dataset.cmkViewWatoMenu = '1';
+    if (!hasWatoAccess(doc)) return;
+
+    try { if (!/\/view\.py/.test(doc.location.pathname)) return; } catch (e) { return; }
+
+    const menues = doc.querySelector('#page_menu_bar td.menues');
+    if (!menues) return;
+
+    const hosts = [...new Set(
+      [...doc.querySelectorAll('tr.data td.nobr a[href*="host="]')]
+        .map(a => { const m = a.href.match(/[?&]host=([^&]+)/); return m ? decodeURIComponent(m[1]) : null; })
+        .filter(Boolean)
+    )];
+    if (!hosts.length) return;
+
+    const folder = new URLSearchParams(doc.location.search).get('wato_folder') || '';
+    const base = doc.location.pathname.replace(/[^/]*$/, '');
+    const pages = Math.ceil(hosts.length / WATO_PAGE_SIZE);
+
+    const wrapper = doc.createElement('div');
+    wrapper.className = 'cmk-sk-wato-menu';
+    wrapper.style.cssText = 'display:inline-flex;align-items:center;padding:0 8px;border-left:1px solid rgba(255,255,255,0.15);';
+
+    const sel = doc.createElement('select');
+    sel.style.cssText = 'background:#444;color:#ddd;border:1px solid #888;border-radius:3px;padding:2px 5px;font-size:12px;cursor:pointer;vertical-align:middle;';
+
+    const placeholder = doc.createElement('option');
+    placeholder.value = '';
+    placeholder.disabled = true;
+    placeholder.selected = true;
+    placeholder.textContent = 'Select hosts (' + hosts.length + ')';
+    sel.appendChild(placeholder);
+
+    for (let i = 0; i < pages; i++) {
+      const start = i * WATO_PAGE_SIZE;
+      const end = Math.min(start + WATO_PAGE_SIZE, hosts.length);
+      const opt = doc.createElement('option');
+      opt.value = i;
+      opt.textContent = 'Host ' + (start + 1) + '-' + end;
+      sel.appendChild(opt);
+    }
+
+    const BTN_STYLE_OFF = 'margin-left:4px;background:#555;color:#999;border:1px solid #777;border-radius:3px;padding:2px 7px;font-size:12px;cursor:not-allowed;vertical-align:middle;';
+    const BTN_STYLE_ON  = 'margin-left:4px;background:#1a73e8;color:#fff;border:1px solid #1a73e8;border-radius:3px;padding:2px 7px;font-size:12px;cursor:pointer;vertical-align:middle;';
+
+    const btn = doc.createElement('button');
+    btn.textContent = 'Apri';
+    btn.disabled = true;
+    btn.style.cssText = BTN_STYLE_OFF;
+
+    sel.addEventListener('change', function () {
+      const valid = sel.value !== '';
+      btn.disabled = !valid;
+      btn.style.cssText = valid ? BTN_STYLE_ON : BTN_STYLE_OFF;
+    });
+
+    btn.addEventListener('click', function () {
+      const page = parseInt(sel.value);
+      if (isNaN(page)) return;
+      const slice = hosts.slice(page * WATO_PAGE_SIZE, (page + 1) * WATO_PAGE_SIZE);
+      const regex = '~^(' + slice.join('|') + ')$';
+      const url = location.origin + base + 'wato.py?mode=folder'
+        + (folder ? '&folder=' + encodeURIComponent(folder) : '')
+        + '&host_search=1'
+        + '&host_search_host=' + encodeURIComponent(regex)
+        + '&filled_in=edit_host';
+      window.open(url, '_blank');
+      sel.value = '';
+      btn.disabled = true;
+      btn.style.cssText = BTN_STYLE_OFF;
+    });
+
+    wrapper.appendChild(sel);
+    wrapper.appendChild(btn);
+    menues.appendChild(wrapper);
+  }
+
+
+  // =========================================================================
+  // BOOTSTRAP: polling for each feature, activated only if the select is present
+  // =========================================================================
+
+  let attemptsFolder    = 0;
+  let attemptsAcc       = 0;
+  let attemptsRuleset   = 0;
+  let attemptsInventory = 0;
+  let attemptsFolderMon = 0;
+  let attemptsViewWato  = 0;
+  let attemptsChangelog = 0;
+  let attemptsAccToggle = 0;
 
   function tryEnhanceFolderSelect() {
     const iDoc = getWatoDoc(FOLDER_SELECT_ID);
     if (!iDoc || !iDoc.body) {
-      if (++attempts < MAX_ATTEMPTS) setTimeout(tryEnhanceFolderSelect, POLL_INTERVAL_MS);
+      if (++attemptsFolder < MAX_ATTEMPTS) setTimeout(tryEnhanceFolderSelect, POLL_INTERVAL_MS);
       return;
     }
 
-    const sel = iDoc.getElementById(FOLDER_SELECT_ID);
-    if (!sel) {
-      // La select non è presente in questa pagina: feature non applicabile, si ferma.
+    const sel   = iDoc.getElementById(FOLDER_SELECT_ID);
+    const selVF = iDoc.getElementById('wato_folder');
+    if (!sel && !selVF) return;
+
+    if (sel && !sel.dataset.cmkEnhanced) {
+      if (!sel.classList.contains('select2-hidden-accessible')) {
+        if (++attemptsFolder < MAX_ATTEMPTS) setTimeout(tryEnhanceFolderSelect, POLL_INTERVAL_MS);
+        return;
+      }
+      buildCustomSearchOverlay(iDoc, sel);
+    }
+    if (selVF && !selVF.dataset.cmkEnhanced) {
+      if (!selVF.classList.contains('select2-hidden-accessible')) {
+        if (++attemptsFolder < MAX_ATTEMPTS) setTimeout(tryEnhanceFolderSelect, POLL_INTERVAL_MS);
+        return;
+      }
+      buildCustomSearchOverlay(iDoc, selVF, selVF.closest('.floatfilter') || selVF.parentElement);
+    }
+  }
+
+  function tryInitAccordionCounts() {
+    const iDoc = getWatoDoc('form_edit_host');
+    if (!iDoc || !iDoc.body) {
+      if (++attemptsAcc < MAX_ATTEMPTS) setTimeout(tryInitAccordionCounts, POLL_INTERVAL_MS);
       return;
     }
+    // URL guard: only activates on pages with supported accordions
+    if (!ACCORDION_MODES.has(getPageMode(iDoc))) return;
+    if (!initAccordionCheckedCounts(iDoc)) {
+      if (++attemptsAcc < MAX_ATTEMPTS) setTimeout(tryInitAccordionCounts, POLL_INTERVAL_MS);
+    }
+  }
 
-    if (!sel.classList.contains('select2-hidden-accessible')) {
-      if (++attempts < MAX_ATTEMPTS) setTimeout(tryEnhanceFolderSelect, POLL_INTERVAL_MS);
+  function tryHighlightRuleset() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsRuleset < MAX_ATTEMPTS) setTimeout(tryHighlightRuleset, POLL_INTERVAL_MS);
       return;
     }
+    if (getPageMode(doc) !== 'edit_ruleset') return;
+    highlightIneffectiveRules(doc);
+    highlightRuleMatchStatus(doc);
+    addRulesetFilterToggle(doc);
+  }
 
-    buildCustomSearchOverlay(iDoc, sel);
+  function tryAddInventoryButtons() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsInventory < MAX_ATTEMPTS) setTimeout(tryAddInventoryButtons, POLL_INTERVAL_MS);
+      return;
+    }
+    try { if (!/\/view\.py/.test(doc.location.pathname)) return; } catch (e) { return; }
+    addInventoryButtons(doc);
+  }
+
+  // =========================================================================
+  // FEATURE: Auto-check "Activate foreign changes" on changelog page
+  // =========================================================================
+
+  function tryAutoCheckForeignActivation() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsChangelog < MAX_ATTEMPTS) setTimeout(tryAutoCheckForeignActivation, POLL_INTERVAL_MS);
+      return;
+    }
+    try { if (getPageMode(doc) !== 'changelog') return; } catch (e) { return; }
+    const cb = doc.getElementById('cb_activate_p_foreign');
+    if (!cb) {
+      if (++attemptsChangelog < MAX_ATTEMPTS) setTimeout(tryAutoCheckForeignActivation, POLL_INTERVAL_MS);
+      return;
+    }
+    if (!cb.checked) cb.click();
+  }
+
+  function tryAddViewWatoMenu() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsViewWato < MAX_ATTEMPTS) setTimeout(tryAddViewWatoMenu, POLL_INTERVAL_MS);
+      return;
+    }
+    try { if (!/\/view\.py/.test(doc.location.pathname)) return; } catch (e) { return; }
+    // Wait until the data table is present
+    if (!doc.querySelector('tr.data td.nobr a[href*="host="]')) {
+      if (++attemptsViewWato < MAX_ATTEMPTS) setTimeout(tryAddViewWatoMenu, POLL_INTERVAL_MS);
+      return;
+    }
+    addViewWatoMenu(doc);
+  }
+
+  function tryAddWatoFolderMonitorButtons() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsFolderMon < MAX_ATTEMPTS) setTimeout(tryAddWatoFolderMonitorButtons, POLL_INTERVAL_MS);
+      return;
+    }
+    try { if (!/\/wato\.py/.test(doc.location.pathname)) return; } catch (e) { return; }
+    if (getPageMode(doc) !== 'folder') return;
+    addWatoFolderMonitorButtons(doc);
+  }
+
+  // =========================================================================
+  // Collapse All / Expand All buttons in the top menu bar.
+  // Works on edit_host / bulkedit / editfolder (table.nform accordions)
+  // and edit_ruleset (div.foldable accordions). Uses getTargetDoc() so it
+  // works with and without the sidebar iframe.
+  // =========================================================================
+
+  function addAccordionToggleButtons(doc) {
+    if (doc.body.dataset.cmkAccToggle === '1') return;
+    try { if (!/\/wato\.py/.test(doc.location.pathname)) return; } catch (e) { return; }
+    const menues = doc.querySelector('td.menues');
+    if (!menues) return;
+    if (!doc.querySelector('table.nform') && !doc.querySelector('div.foldable')) return;
+
+    injectStyles(doc, 'cmk-sk-acc-toggle-style', `
+      #cmk-sk-acc-toggle-btns {
+        display: inline-flex; align-items: center; gap: 4px;
+        margin-left: 10px; padding-left: 10px;
+        border-left: 1px solid rgba(255,255,255,0.2);
+        vertical-align: middle;
+      }
+      .cmk-sk-acc-btn {
+        background: transparent; border-radius: 3px;
+        padding: 2px 6px; font-size: 11px; font-family: monospace;
+        font-weight: bold; cursor: pointer; white-space: nowrap; letter-spacing: 0.03em;
+      }
+      .cmk-sk-acc-btn.collapse { color: #e67e22; border: 1px solid #e67e22; }
+      .cmk-sk-acc-btn.collapse:hover { background: rgba(230,126,34,0.15); }
+      .cmk-sk-acc-btn.expand   { color: #27ae60; border: 1px solid #27ae60; }
+      .cmk-sk-acc-btn.expand:hover   { background: rgba(39,174,96,0.15); }
+    `);
+
+    const wrap = doc.createElement('div');
+    wrap.id = 'cmk-sk-acc-toggle-btns';
+
+    const collapseBtn = doc.createElement('button');
+    collapseBtn.className = 'cmk-sk-acc-btn collapse';
+    collapseBtn.textContent = 'Collapse All';
+    collapseBtn.addEventListener('click', () => {
+      doc.querySelectorAll('table.nform.open thead tr.heading td[onclick]').forEach(td => td.click());
+      doc.querySelectorAll('div.foldable.open div.foldable_header[onclick]').forEach(h => h.click());
+    });
+
+    const expandBtn = doc.createElement('button');
+    expandBtn.className = 'cmk-sk-acc-btn expand';
+    expandBtn.textContent = 'Expand All';
+    expandBtn.addEventListener('click', () => {
+      doc.querySelectorAll('table.nform.closed thead tr.heading td[onclick]').forEach(td => td.click());
+      doc.querySelectorAll('div.foldable.closed div.foldable_header[onclick]').forEach(h => h.click());
+    });
+
+    wrap.appendChild(collapseBtn);
+    wrap.appendChild(expandBtn);
+    menues.appendChild(wrap);
+    doc.body.dataset.cmkAccToggle = '1';
+  }
+
+  function tryAddAccordionToggleButtons() {
+    const doc = getTargetDoc();
+    if (!doc || !doc.body) {
+      if (++attemptsAccToggle < MAX_ATTEMPTS) setTimeout(tryAddAccordionToggleButtons, POLL_INTERVAL_MS);
+      return;
+    }
+    addAccordionToggleButtons(doc);
   }
 
   function init() {
-    attempts = 0;
+    const iDoc = getWatoDoc(FOLDER_SELECT_ID);
+    const mode = getPageMode(iDoc);
+    const targetDoc = getTargetDoc();
+    const targetMode = getPageMode(targetDoc);
+    attemptsFolder    = 0;
+    attemptsAcc       = 0;
+    attemptsRuleset   = 0;
+    attemptsInventory = 0;
+    attemptsFolderMon = 0;
+    attemptsViewWato  = 0;
+    attemptsChangelog = 0;
+    attemptsAccToggle = 0;
+    // Folder select: self-stops if element not found, always schedules.
     setTimeout(tryEnhanceFolderSelect, 800);
+    // Accordion: only on pages in ACCORDION_MODES.
+    if (!mode || ACCORDION_MODES.has(mode)) {
+      setTimeout(tryInitAccordionCounts, 800);
+    }
+    // Ruleset enhancements (ineffective + match status): only on edit_ruleset.
+    if (!targetMode || targetMode === 'edit_ruleset') {
+      setTimeout(tryHighlightRuleset, 300);
+    }
+    // Collapse/Expand All: on pages with nform or foldable accordions.
+    setTimeout(tryAddAccordionToggleButtons, 600);
+    // Inventory button: on view.py, self-stops if not applicable.
+    setTimeout(tryAddInventoryButtons, 500);
+    // Monitor button: on wato.py mode=folder, self-stops if not applicable.
+    setTimeout(tryAddWatoFolderMonitorButtons, 500);
+    // WATO menu: on view.py with host rows, self-stops if not applicable.
+    setTimeout(tryAddViewWatoMenu, 800);
+    // Auto-check foreign activation: only on mode=changelog.
+    if (!targetMode || targetMode === 'changelog') setTimeout(tryAutoCheckForeignActivation, 500);
   }
 
   if (document.readyState === 'complete') {
@@ -444,18 +1368,53 @@
     window.addEventListener('load', init);
   }
 
-  // Rileva navigazione SPA (cambio regola senza reload di pagina)
+  // Detect SPA navigation (page change without full reload)
   new MutationObserver(() => {
     const iDoc = getWatoDoc(FOLDER_SELECT_ID);
     if (!iDoc) return;
+    const mode = getPageMode(iDoc);
     const sel = iDoc.getElementById(FOLDER_SELECT_ID);
     if (sel && sel.classList.contains('select2-hidden-accessible') && !sel.dataset.cmkEnhanced) {
-      attempts = 0;
+      attemptsFolder = 0;
       setTimeout(tryEnhanceFolderSelect, 300);
     }
+    const selVF = iDoc.getElementById('wato_folder');
+    if (selVF && selVF.classList.contains('select2-hidden-accessible') && !selVF.dataset.cmkEnhanced) {
+      attemptsFolder = 0;
+      setTimeout(tryEnhanceFolderSelect, 300);
+    }
+    if (ACCORDION_MODES.has(mode)) {
+      const form = iDoc.getElementById('form_edit_host');
+      if (form && !form.dataset.cmkAccBadge) {
+        attemptsAcc = 0;
+        setTimeout(tryInitAccordionCounts, 300);
+      }
+    }
+    if (mode === 'edit_ruleset' && iDoc.body &&
+        (!iDoc.body.dataset.cmkIneffHighlight || !iDoc.body.dataset.cmkMatchHighlight)) {
+      attemptsRuleset = 0;
+      setTimeout(tryHighlightRuleset, 300);
+    }
+    if (mode === 'folder' && iDoc.body && !iDoc.body.dataset.cmkFolderMonBtns) {
+      attemptsFolderMon = 0;
+      setTimeout(tryAddWatoFolderMonitorButtons, 300);
+    }
+    const tDoc = getTargetDoc();
+    if (tDoc && tDoc.body && !tDoc.body.dataset.cmkViewWatoMenu) {
+      try {
+        if (/\/view\.py/.test(tDoc.location.pathname) && tDoc.querySelector('tr.data td.nobr a[href*="host="]')) {
+          attemptsViewWato = 0;
+          setTimeout(tryAddViewWatoMenu, 300);
+        }
+      } catch (e) {}
+    }
+    if (tDoc && tDoc.body && !tDoc.body.dataset.cmkAccToggle) {
+      attemptsAccToggle = 0;
+      setTimeout(tryAddAccordionToggleButtons, 300);
+    }
   }).observe(document.body, { childList: true, subtree: true });
 
-  // Riavvia al caricamento dell'iframe (layout con sidebar)
+  // Restart on iframe load (sidebar layout)
   const mainIframe = document.querySelector('iframe[name="main"], iframe#main');
   if (mainIframe) {
     mainIframe.addEventListener('load', init);