diff --git a/htdocs/admin/tools/ui/class/documentation.class.php b/htdocs/admin/tools/ui/class/documentation.class.php
index 788f5213076..8c797b2b2a4 100644
--- a/htdocs/admin/tools/ui/class/documentation.class.php
+++ b/htdocs/admin/tools/ui/class/documentation.class.php
@@ -87,7 +87,7 @@ class Documentation
 
 		// Go back to Dolibarr
 		$this->menu['BackToDolibarr'] = array(
-			'url' => DOL_URL_ROOT,
+			'url' => dol_buildpath('modulebuilder/index.php', 1),
 			'icon' => 'fas fa-arrow-left',
 			'submenu' => array(),
 		);
@@ -201,6 +201,13 @@ class Documentation
 					'submenu' => array(),
 					'summary' => array(),
 				),
+
+				'FreezeTooltip' => array(
+					'url' => dol_buildpath($this->baseUrl.'/content/freeze-tooltip.php', 1),
+					'icon' => 'far fa-comment',
+					'submenu' => array(),
+					'summary' => array(),
+				),
 			)
 		);
 
@@ -239,14 +246,6 @@ class Documentation
 						'ExperimentalUxContributionTitle' => '#experimental-ux-contribution',
 					),
 				),
-
-				'ExperimentalUxFreezeTooltip' => array(
-					'url' => dol_buildpath($this->baseUrl.'/experimental/experiments/freeze-tooltip/index.php', 1),
-					'icon' => 'fas fa-flask',
-					'submenu' => array(),
-					'summary' => array(),
-				),
-
 				'ExperimentalUxInputAjaxFeedback' => array(
 					'url' => dol_buildpath($this->baseUrl.'/experimental/experiments/input-feedback/index.php', 1),
 					'icon' => 'fas fa-flask',
diff --git a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/index.php b/htdocs/admin/tools/ui/content/freeze-tooltip.php
similarity index 88%
rename from htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/index.php
rename to htdocs/admin/tools/ui/content/freeze-tooltip.php
index 82e8e1ce96c..6b76ed8102c 100644
--- a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/index.php
+++ b/htdocs/admin/tools/ui/content/freeze-tooltip.php
@@ -18,7 +18,7 @@
  */
 
 // Load Dolibarr environment
-require '../../../../../../main.inc.php';
+require '../../../../main.inc.php';
 
 /**
  * @var DoliDB      $db
@@ -40,22 +40,20 @@ $langs->load('uxdocumentation');
 
 //
 $documentation = new Documentation($db);
-$group = 'ExperimentalUx';
-
-$experimentAssetsPath = $documentation->baseUrl . '/experimental/experiments/freeze-tooltip/assets/';
+$group = 'Content';
 
 $js = [
-	$experimentAssetsPath . 'freeze-by-alt-keypress.js'
+//  now included in Dolibarr in htdocs/core/js/lib_tooltip-freeze-by-alt-keypress.js
 ];
 $css = [
-	$experimentAssetsPath . 'freeze-by-alt-keypress.css'
+//  now included in Dolibarr in htdocs/theme/eldy/tooltips.inc.css
 ];
 
 // Output html head + body - Param is Title
-$documentation->docHeader($langs->trans('ExperimentalUxFreezeTooltip', $group), $js, $css);
+$documentation->docHeader($langs->trans('FreezeTooltip', $group), $js, $css);
 
 // Set view for menu and breadcrumb
-$documentation->view = [$group, 'ExperimentalUxFreezeTooltip'];
+$documentation->view = [$group, 'FreezeTooltip'];
 
 // Output sidebar
 $documentation->showSidebar(); ?>
@@ -66,7 +64,7 @@ $documentation->showSidebar(); ?>
 
 	<div class="doc-content-wrapper">
 
-		<h1 class="documentation-title"><?php echo $langs->trans('ExperimentalUxFreezeTooltip'); ?></h1>
+		<h1 class="documentation-title"><?php echo $langs->trans('FreezeTooltip'); ?></h1>
 
 		<?php $documentation->showSummary(); ?>
 
@@ -142,4 +140,3 @@ $documentation->showSidebar(); ?>
 <?php
 // Output close body + html
 $documentation->docFooter();
-?>
diff --git a/htdocs/core/js/lib_foot.js.php b/htdocs/core/js/lib_foot.js.php
index e1c952cf550..ba568a5d441 100644
--- a/htdocs/core/js/lib_foot.js.php
+++ b/htdocs/core/js/lib_foot.js.php
@@ -424,3 +424,4 @@ print '
 
 // JS CODE USED by form::getSearchFilterToolInput
 include __DIR__ . '/lib_foot_search_tool.js';
+include __DIR__ . '/lib_tooltip-freeze-by-alt-keypress.js';
diff --git a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.js b/htdocs/core/js/lib_tooltip-freeze-by-alt-keypress.js
similarity index 50%
rename from htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.js
rename to htdocs/core/js/lib_tooltip-freeze-by-alt-keypress.js
index bbae1c8a9f7..d5f7fa5e81d 100644
--- a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.js
+++ b/htdocs/core/js/lib_tooltip-freeze-by-alt-keypress.js
@@ -1,13 +1,34 @@
 /**
- * TOOTLTIP keep open when alt key pressed
- * note alt key must be pressed after tooltip is open (because tooltip can include tooltip...)
+ * Tooltip: keep tooltip open when Alt key is pressed
+ * Note: Alt key must be pressed AFTER the tooltip is opened
+ * because tooltips can contain links or other tooltips
  */
-$(function () { // .ready() callback, is only executed when the DOM is fully loaded
+$(function () {  // Execute when DOM is fully loaded
+
+	let altPressed = false;
+
+	/**
+	 * Track Alt key state globally
+	 * Tooltip events do not provide keyboard state (e.altKey is always undefined),
+	 * so we must store the real keyboard state manually.
+	 */
+	document.addEventListener("keydown", e => {
+		if(e.key === "Alt") altPressed = true;
+	});
+
+	document.addEventListener("keyup", e => {
+		if(e.key === "Alt") altPressed = false;
+	});
 
 	let tooltipContainerTarget = '.ui-tooltip[role="tooltip"] .ui-tooltip-content';
+	let noAjaxTooltipClass = '.classfortooltip, .classfortooltipdropdown';
+	let tooltipClass = noAjaxTooltipClass + ', .classforajaxtooltip';
 
+	/**
+	 * Close all opened tooltips from scope
+	 */
 	let closeOpenedTooltips = function (){
-		$(".classfortooltip, .classfortooltipdropdown").each(function() {
+		$(tooltipClass).each(function() {
 			if($( this ).data('ui-tooltip')){
 				$( this ).tooltip( "close" );
 			}
@@ -32,34 +53,37 @@ $(function () { // .ready() callback, is only executed when the DOM is fully loa
 	// });
 
 	/**
-	 * On release key tooltip vanish
+	 * Any key release closes all tooltips
+	 * (Alt key release ends the "stay open" behavior)
 	 */
 	document.addEventListener("keyup", function(evt) {
 		closeOpenedTooltips();
 	});
 
 	/**
-	 * allow click on links in tooltip but remove [alt] + [click] Download behavior
+	 * Allow clicking links inside tooltips without triggering
+	 * the browser's default "Alt + click = download" behavior
 	 */
 	$(document).on('click', tooltipContainerTarget + ' a', function(evt) {
 		evt.preventDefault(); // no download
 
 		if(evt.ctrlKey || $(this).attr('target') == '_blank' ){
+			// Open link in new tab
 			let win = window.open(this.href, '_blank');
-			if (win) {
-				//Browser has allowed it to be opened
-				win.focus();
-			}
+			if (win) win.focus();
 		}
 		else{
+			// Standard navigation
 			window.location.href = this.href;
 		}
 	});
 
 	/**
-	 * Tooltip in a tooltip
+	 * Support nested tooltips (tooltip inside another tooltip)
+	 * Create sub-tooltips dynamically on first mouse enter
+	 * but not for ajax tooltips yet
 	 */
-	$(document).on('mouseenter', tooltipContainerTarget, function(evt){
+	$(document).on('mouseenter', noAjaxTooltipClass, function(evt){
 		$(this).find('.classfortooltip').each(function() {
 			if(!$( this ).data("tooltipset")){
 				console.log('ok');
@@ -76,8 +100,13 @@ $(function () { // .ready() callback, is only executed when the DOM is fully loa
 		});
 	});
 
-	$(".classfortooltip, .classfortooltipdropdown").on("tooltipclose", function (e) {
-		if (e.altKey && !$(this).data('opened-after-ctrl-pressed')) {
+	/**
+	 * When tooltip closes:
+	 * If Alt is pressed and tooltip wasn't opened while Alt was already pressed,
+	 * reopen the tooltip and keep it open (Alt-hold mode)
+	 */
+	$(tooltipClass).on("tooltipclose", function (e) {
+		if (altPressed && !$(this).data('opened-after-alt-pressed')) {
 			let delay = $(this).tooltip( "option", "show.delay");
 			$(this).tooltip( "option", "show.delay", 0); // save appear delay
 			$(this).tooltip( "open" );
@@ -86,7 +115,11 @@ $(function () { // .ready() callback, is only executed when the DOM is fully loa
 		}
 	});
 
-	$(".classfortooltip, .classfortooltipdropdown").on("tooltipopen", function (e) {
-		$(this).data('opened-after-ctrl-pressed', e.altKey);
+	/**
+	 * When tooltip opens, store whether Alt key was pressed at that moment
+	 * This prevents infinite reopen loops
+	 */
+	$(tooltipClass).on("tooltipopen", function (e) {
+		$(this).data('opened-after-alt-pressed', altPressed);
 	});
 });
diff --git a/htdocs/langs/en_US/uxdocumentation.lang b/htdocs/langs/en_US/uxdocumentation.lang
index 985ec0ca31e..aed8f1310e6 100644
--- a/htdocs/langs/en_US/uxdocumentation.lang
+++ b/htdocs/langs/en_US/uxdocumentation.lang
@@ -14,6 +14,7 @@ DocExampleForPHPCode=Example of code to use in PHP
 # Components
 DocComponentsTitle=Components
 DocComponentsMainDescription=Components section description is under development
+FreezeTooltip = Tooltip freeze
 
 # Badges
 DocBadgeTitle=Badges
@@ -164,7 +165,6 @@ ExperimentalUxContributionTxt03 = In some cases, variants may be incompatible wi
 ExperimentalUxContributionEnd = This structure ensures a clear and modular organization of UX experiments, making testing and future integration more efficient.
 
 # Start experiements menu title
-ExperimentalUxFreezeTooltip = Tooltip freeze
 ExperimentalUxInputAjaxFeedback = Input feedback
 # End experiements manu tyile
 
diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index a3d5ee8d27e..9840a247f9c 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -1249,9 +1249,6 @@ td.wordbreak img, td.wordbreakimp img {
 .cursorpointer {
 	cursor: pointer;
 }
-.classfortooltiponclick .fa-question-circle {
-	cursor: pointer;
-}
 .cursormove {
 	cursor: move;
 }
@@ -9306,6 +9303,7 @@ include dol_buildpath($path.'/theme/'.$theme.'/info-box.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/progress.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/timeline.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/search-input.inc.css', 0);
+include dol_buildpath($path.'/theme/'.$theme.'/tooltips.inc.css', 0);
 
 
 // Add custom CSS if defined
diff --git a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.css b/htdocs/theme/eldy/tooltips.inc.css
similarity index 61%
rename from htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.css
rename to htdocs/theme/eldy/tooltips.inc.css
index 262910d50f1..0577ade3f05 100644
--- a/htdocs/admin/tools/ui/experimental/experiments/freeze-tooltip/assets/freeze-by-alt-keypress.css
+++ b/htdocs/theme/eldy/tooltips.inc.css
@@ -1,3 +1,11 @@
+.classfortooltiponclick .fa-question-circle {
+	cursor: pointer;
+}
+
+/**
+Used for tooltip freeze with alt keypress
+this allow first child tooltip
+**/
 div.ui-tooltip.mytooltip-hover-tooltip {
 	z-index: 999999;
 	border: solid 1px #BBBBBB;
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index ca4d4f7a9fa..b4372bbb83d 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -1406,9 +1406,6 @@ td.wordbreak img, td.wordbreakimp img {
 .cursorpointer {
 	cursor: pointer;
 }
-.classfortooltiponclick .fa-question-circle {
-	cursor: pointer;
-}
 .cursormove {
 	cursor: move;
 }
@@ -9019,6 +9016,7 @@ include dol_buildpath($path.'/theme/'.$theme.'/info-box.inc.php', 0);
 include dol_buildpath($path.'/theme/'.$theme.'/progress.inc.php', 0);
 include dol_buildpath($path.'/theme/eldy/timeline.inc.php', 0); // actually md use same style as eldy theme
 include dol_buildpath($path.'/theme/'.$theme.'/search-input.inc.css', 0); // actually md use same style as eldy theme
+include dol_buildpath($path.'/theme/'.$theme.'/tooltips.inc.css', 0);
 
 if (getDolGlobalString('THEME_CUSTOM_CSS')) {
 	print getDolGlobalString('THEME_CUSTOM_CSS');
diff --git a/htdocs/theme/md/tooltips.inc.css b/htdocs/theme/md/tooltips.inc.css
new file mode 100644
index 00000000000..0577ade3f05
--- /dev/null
+++ b/htdocs/theme/md/tooltips.inc.css
@@ -0,0 +1,19 @@
+.classfortooltiponclick .fa-question-circle {
+	cursor: pointer;
+}
+
+/**
+Used for tooltip freeze with alt keypress
+this allow first child tooltip
+**/
+div.ui-tooltip.mytooltip-hover-tooltip {
+	z-index: 999999;
+	border: solid 1px #BBBBBB;
+	padding: 10px 20px;
+	border-radius: 0;
+	box-shadow: 0 0 4px grey;
+	margin: 2px;
+	font-stretch: condensed;
+	line-height: 1.6em;
+	max-width: 550px;
+}