diff --git a/dictionaries/en.dictionary.itop.ui.php b/dictionaries/en.dictionary.itop.ui.php
index dc7d7430f2..79b54b365f 100644
--- a/dictionaries/en.dictionary.itop.ui.php
+++ b/dictionaries/en.dictionary.itop.ui.php
@@ -506,6 +506,7 @@
 	'UI:Error:MaintenanceMode'                            => 'Application is currently in maintenance',
 	'UI:Error:MaintenanceTitle'                           => 'Maintenance',
 	'UI:Error:InvalidToken'                               => 'Error: the requested operation has already been performed (CSRF token not found)',
+	'UI:Error:TwigController'                             => 'Internal error in form controller',
 
 	'UI:Error:SMTP:UnknownVendor' => 'OAuth SMTP provider %1$s does not exist  (email_transport_smtp.oauth.provider)',
 
diff --git a/dictionaries/fr.dictionary.itop.ui.php b/dictionaries/fr.dictionary.itop.ui.php
index 1b4f9e4f06..ff9e4f2ade 100644
--- a/dictionaries/fr.dictionary.itop.ui.php
+++ b/dictionaries/fr.dictionary.itop.ui.php
@@ -500,6 +500,7 @@
 	'UI:Error:MaintenanceMode' => 'L\'application est en maintenance',
 	'UI:Error:MaintenanceTitle' => 'Maintenance',
 	'UI:Error:InvalidToken' => 'Erreur: l\'opération a déjà été effectuée (CSRF token not found)',
+	'UI:Error:TwigController' => 'Erreur interne dans le contrôleur de formulaire',
 	'UI:Error:SMTP:UnknownVendor' => 'Le provider SMTP OAuth 2.0 %1$s n\'existe pas',
 	'UI:GroupBy:Count' => 'Nombre',
 	'UI:GroupBy:Count+' => 'Nombre d\'éléments',
diff --git a/lib/composer/autoload_classmap.php b/lib/composer/autoload_classmap.php
index 397941d3c1..c338b2bcc1 100644
--- a/lib/composer/autoload_classmap.php
+++ b/lib/composer/autoload_classmap.php
@@ -144,8 +144,10 @@
     'Combodo\\iTop\\Application\\Search\\CriterionParser' => $baseDir . '/sources/Application/Search/criterionparser.class.inc.php',
     'Combodo\\iTop\\Application\\Search\\SearchForm' => $baseDir . '/sources/Application/Search/searchform.class.inc.php',
     'Combodo\\iTop\\Application\\Status\\Status' => $baseDir . '/sources/Application/Status/Status.php',
+    'Combodo\\iTop\\Application\\TwigBase\\Controller\\AbstractProfilerExtension' => $baseDir . '/sources/Application/TwigBase/Controller/AbstractProfilerExtension.php',
     'Combodo\\iTop\\Application\\TwigBase\\Controller\\Controller' => $baseDir . '/sources/Application/TwigBase/Controller/Controller.php',
     'Combodo\\iTop\\Application\\TwigBase\\Controller\\PageNotFoundException' => $baseDir . '/application/exceptions/PageNotFoundException.php',
+    'Combodo\\iTop\\Application\\TwigBase\\Controller\\iProfilerExtension' => $baseDir . '/sources/Application/TwigBase/Controller/iProfilerExtension.php',
     'Combodo\\iTop\\Application\\TwigBase\\Twig\\Extension' => $baseDir . '/sources/Application/TwigBase/Twig/Extension.php',
     'Combodo\\iTop\\Application\\TwigBase\\Twig\\TwigHelper' => $baseDir . '/sources/Application/TwigBase/Twig/TwigHelper.php',
     'Combodo\\iTop\\Application\\TwigBase\\UI\\UIBlockExtension' => $baseDir . '/sources/Application/TwigBase/UI/UIBlockExtension.php',
@@ -2412,13 +2414,6 @@
     'Symfony\\Component\\Form\\SubmitButton' => $vendorDir . '/symfony/form/SubmitButton.php',
     'Symfony\\Component\\Form\\SubmitButtonBuilder' => $vendorDir . '/symfony/form/SubmitButtonBuilder.php',
     'Symfony\\Component\\Form\\SubmitButtonTypeInterface' => $vendorDir . '/symfony/form/SubmitButtonTypeInterface.php',
-    'Symfony\\Component\\Form\\Test\\FormBuilderInterface' => $vendorDir . '/symfony/form/Test/FormBuilderInterface.php',
-    'Symfony\\Component\\Form\\Test\\FormIntegrationTestCase' => $vendorDir . '/symfony/form/Test/FormIntegrationTestCase.php',
-    'Symfony\\Component\\Form\\Test\\FormInterface' => $vendorDir . '/symfony/form/Test/FormInterface.php',
-    'Symfony\\Component\\Form\\Test\\FormPerformanceTestCase' => $vendorDir . '/symfony/form/Test/FormPerformanceTestCase.php',
-    'Symfony\\Component\\Form\\Test\\Traits\\RunTestTrait' => $vendorDir . '/symfony/form/Test/Traits/RunTestTrait.php',
-    'Symfony\\Component\\Form\\Test\\Traits\\ValidatorExtensionTrait' => $vendorDir . '/symfony/form/Test/Traits/ValidatorExtensionTrait.php',
-    'Symfony\\Component\\Form\\Test\\TypeTestCase' => $vendorDir . '/symfony/form/Test/TypeTestCase.php',
     'Symfony\\Component\\Form\\Util\\FormUtil' => $vendorDir . '/symfony/form/Util/FormUtil.php',
     'Symfony\\Component\\Form\\Util\\InheritDataAwareIterator' => $vendorDir . '/symfony/form/Util/InheritDataAwareIterator.php',
     'Symfony\\Component\\Form\\Util\\OptionsResolverWrapper' => $vendorDir . '/symfony/form/Util/OptionsResolverWrapper.php',
@@ -3031,7 +3026,6 @@
     'Symfony\\Component\\Security\\Core\\Signature\\Exception\\InvalidSignatureException' => $vendorDir . '/symfony/security-core/Signature/Exception/InvalidSignatureException.php',
     'Symfony\\Component\\Security\\Core\\Signature\\ExpiredSignatureStorage' => $vendorDir . '/symfony/security-core/Signature/ExpiredSignatureStorage.php',
     'Symfony\\Component\\Security\\Core\\Signature\\SignatureHasher' => $vendorDir . '/symfony/security-core/Signature/SignatureHasher.php',
-    'Symfony\\Component\\Security\\Core\\Test\\AccessDecisionStrategyTestCase' => $vendorDir . '/symfony/security-core/Test/AccessDecisionStrategyTestCase.php',
     'Symfony\\Component\\Security\\Core\\User\\AttributesBasedUserProviderInterface' => $vendorDir . '/symfony/security-core/User/AttributesBasedUserProviderInterface.php',
     'Symfony\\Component\\Security\\Core\\User\\ChainUserChecker' => $vendorDir . '/symfony/security-core/User/ChainUserChecker.php',
     'Symfony\\Component\\Security\\Core\\User\\ChainUserProvider' => $vendorDir . '/symfony/security-core/User/ChainUserProvider.php',
diff --git a/lib/composer/autoload_static.php b/lib/composer/autoload_static.php
index 31cd57336d..f237f3d1e1 100644
--- a/lib/composer/autoload_static.php
+++ b/lib/composer/autoload_static.php
@@ -525,8 +525,10 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Application\\Search\\CriterionParser' => __DIR__ . '/../..' . '/sources/Application/Search/criterionparser.class.inc.php',
         'Combodo\\iTop\\Application\\Search\\SearchForm' => __DIR__ . '/../..' . '/sources/Application/Search/searchform.class.inc.php',
         'Combodo\\iTop\\Application\\Status\\Status' => __DIR__ . '/../..' . '/sources/Application/Status/Status.php',
+        'Combodo\\iTop\\Application\\TwigBase\\Controller\\AbstractProfilerExtension' => __DIR__ . '/../..' . '/sources/Application/TwigBase/Controller/AbstractProfilerExtension.php',
         'Combodo\\iTop\\Application\\TwigBase\\Controller\\Controller' => __DIR__ . '/../..' . '/sources/Application/TwigBase/Controller/Controller.php',
         'Combodo\\iTop\\Application\\TwigBase\\Controller\\PageNotFoundException' => __DIR__ . '/../..' . '/application/exceptions/PageNotFoundException.php',
+        'Combodo\\iTop\\Application\\TwigBase\\Controller\\iProfilerExtension' => __DIR__ . '/../..' . '/sources/Application/TwigBase/Controller/iProfilerExtension.php',
         'Combodo\\iTop\\Application\\TwigBase\\Twig\\Extension' => __DIR__ . '/../..' . '/sources/Application/TwigBase/Twig/Extension.php',
         'Combodo\\iTop\\Application\\TwigBase\\Twig\\TwigHelper' => __DIR__ . '/../..' . '/sources/Application/TwigBase/Twig/TwigHelper.php',
         'Combodo\\iTop\\Application\\TwigBase\\UI\\UIBlockExtension' => __DIR__ . '/../..' . '/sources/Application/TwigBase/UI/UIBlockExtension.php',
@@ -2793,13 +2795,6 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Symfony\\Component\\Form\\SubmitButton' => __DIR__ . '/..' . '/symfony/form/SubmitButton.php',
         'Symfony\\Component\\Form\\SubmitButtonBuilder' => __DIR__ . '/..' . '/symfony/form/SubmitButtonBuilder.php',
         'Symfony\\Component\\Form\\SubmitButtonTypeInterface' => __DIR__ . '/..' . '/symfony/form/SubmitButtonTypeInterface.php',
-        'Symfony\\Component\\Form\\Test\\FormBuilderInterface' => __DIR__ . '/..' . '/symfony/form/Test/FormBuilderInterface.php',
-        'Symfony\\Component\\Form\\Test\\FormIntegrationTestCase' => __DIR__ . '/..' . '/symfony/form/Test/FormIntegrationTestCase.php',
-        'Symfony\\Component\\Form\\Test\\FormInterface' => __DIR__ . '/..' . '/symfony/form/Test/FormInterface.php',
-        'Symfony\\Component\\Form\\Test\\FormPerformanceTestCase' => __DIR__ . '/..' . '/symfony/form/Test/FormPerformanceTestCase.php',
-        'Symfony\\Component\\Form\\Test\\Traits\\RunTestTrait' => __DIR__ . '/..' . '/symfony/form/Test/Traits/RunTestTrait.php',
-        'Symfony\\Component\\Form\\Test\\Traits\\ValidatorExtensionTrait' => __DIR__ . '/..' . '/symfony/form/Test/Traits/ValidatorExtensionTrait.php',
-        'Symfony\\Component\\Form\\Test\\TypeTestCase' => __DIR__ . '/..' . '/symfony/form/Test/TypeTestCase.php',
         'Symfony\\Component\\Form\\Util\\FormUtil' => __DIR__ . '/..' . '/symfony/form/Util/FormUtil.php',
         'Symfony\\Component\\Form\\Util\\InheritDataAwareIterator' => __DIR__ . '/..' . '/symfony/form/Util/InheritDataAwareIterator.php',
         'Symfony\\Component\\Form\\Util\\OptionsResolverWrapper' => __DIR__ . '/..' . '/symfony/form/Util/OptionsResolverWrapper.php',
@@ -3412,7 +3407,6 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Symfony\\Component\\Security\\Core\\Signature\\Exception\\InvalidSignatureException' => __DIR__ . '/..' . '/symfony/security-core/Signature/Exception/InvalidSignatureException.php',
         'Symfony\\Component\\Security\\Core\\Signature\\ExpiredSignatureStorage' => __DIR__ . '/..' . '/symfony/security-core/Signature/ExpiredSignatureStorage.php',
         'Symfony\\Component\\Security\\Core\\Signature\\SignatureHasher' => __DIR__ . '/..' . '/symfony/security-core/Signature/SignatureHasher.php',
-        'Symfony\\Component\\Security\\Core\\Test\\AccessDecisionStrategyTestCase' => __DIR__ . '/..' . '/symfony/security-core/Test/AccessDecisionStrategyTestCase.php',
         'Symfony\\Component\\Security\\Core\\User\\AttributesBasedUserProviderInterface' => __DIR__ . '/..' . '/symfony/security-core/User/AttributesBasedUserProviderInterface.php',
         'Symfony\\Component\\Security\\Core\\User\\ChainUserChecker' => __DIR__ . '/..' . '/symfony/security-core/User/ChainUserChecker.php',
         'Symfony\\Component\\Security\\Core\\User\\ChainUserProvider' => __DIR__ . '/..' . '/symfony/security-core/User/ChainUserProvider.php',
diff --git a/sources/Application/TwigBase/Controller/AbstractProfilerExtension.php b/sources/Application/TwigBase/Controller/AbstractProfilerExtension.php
new file mode 100644
index 0000000000..cb6f9030b1
--- /dev/null
+++ b/sources/Application/TwigBase/Controller/AbstractProfilerExtension.php
@@ -0,0 +1,38 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Application\TwigBase\Controller;
+
+
+abstract class AbstractProfilerExtension implements iProfilerExtension
+{
+	public function Init()
+	{
+	}
+
+	public abstract function GetTemplatesPath(): null|string|array;
+
+	public abstract function IsEnabled(): bool;
+
+	public abstract function GetDebugTemplate(): string;
+
+	public abstract function GetDebugParams(array $aParams): array;
+
+	public function GetLinkedScripts(): ?array
+	{
+		return null;
+	}
+
+	public function GetLinkedStylesheets(): ?array
+	{
+		return null;
+	}
+
+	public function GetSaas(): null|array
+	{
+		return null;
+	}
+}
\ No newline at end of file
diff --git a/sources/Application/TwigBase/Controller/Controller.php b/sources/Application/TwigBase/Controller/Controller.php
index 84a0567698..bc70652af8 100644
--- a/sources/Application/TwigBase/Controller/Controller.php
+++ b/sources/Application/TwigBase/Controller/Controller.php
@@ -26,6 +26,7 @@
 use Combodo\iTop\Application\WebPage\iTopWebPage;
 use Combodo\iTop\Application\WebPage\WebPage;
 use Combodo\iTop\Controller\AbstractController;
+use Combodo\iTop\Service\InterfaceDiscovery\InterfaceDiscovery;
 use Dict;
 use Exception;
 use ExecutionKPI;
@@ -47,7 +48,6 @@
 use Symfony\Component\Form\Forms;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\Security\Csrf\CsrfTokenManager;
-use Twig\Error\Error;
 use Twig\Error\SyntaxError;
 use Twig\RuntimeLoader\FactoryRuntimeLoader;
 use utils;
@@ -61,38 +61,38 @@ abstract class Controller extends AbstractController
 	const ENUM_PAGE_TYPE_SETUP = 'setup';
 
 	/** @var \Twig\Environment */
-	private $m_oTwig;
+	private $oTwig;
 	/** @var string */
 	protected $m_sOperation;
 	/** @var string */
 	private $m_sModule;
 	/** @var iTopWebPage|AjaxPage */
-	private $m_oPage;
+	private $oPage;
 	/** @var bool */
-	private $m_bCheckDemoMode = false;
+	private $bCheckDemoMode = false;
 	/** @var bool */
-	private $m_bMustBeAdmin = false;
+	private $bMustBeAdmin = false;
 	/** @var string */
-	private $m_sMenuId = null;
+	private $sMenuId = null;
 	/** @var string */
-	private $m_sDefaultOperation = 'Default';
-	private $m_aDefaultParams;
-	private $m_aLinkedScripts;
-	private $m_aLinkedStylesheets;
-	private $m_aSaas;
-	private $m_aAjaxTabs;
+	private $sDefaultOperation = 'Default';
+	private $aDefaultParams;
+	private $aLinkedScripts;
+	private $aLinkedStylesheets;
+	private $aSaas;
+	private $aAjaxTabs;
 	/** parameters for page's blocks
 	 *
 	 * @var array
 	 * @since 3.0.0
 	 */
-	private $m_aBlockParams;
+	private $aBlockParams;
 	/** @var string */
-	private $m_sAccessTokenConfigParamId = null;
+	private $sAccessTokenConfigParamId = null;
 	/** @var boolean false to disable breadcrumb */
-	private $m_bIsBreadCrumbEnabled = true;
+	private $bIsBreadCrumbEnabled = true;
 	/** @var array contains same parameters as {@see iTopWebPage::SetBreadCrumbEntry()} */
-	private $m_aBreadCrumbEntry = [];
+	private $aBreadCrumbEntry = [];
 
 	/** @var Request Request (from Symfony http_foundation component @link https://symfony.com/doc/current/components/http_foundation.html) */
 	private Request $oRequest;
@@ -111,16 +111,17 @@ abstract class Controller extends AbstractController
 	 */
 	public function __construct($sViewPath = '', $sModuleName = 'core', $aAdditionalPaths = [])
 	{
-		$this->m_aLinkedScripts = [];
-		$this->m_aLinkedStylesheets = [];
-		$this->m_aSaas = [];
-		$this->m_aAjaxTabs = [];
-		$this->m_aDefaultParams = [];
-		$this->m_aBlockParams = [];
+		$this->aLinkedScripts = [];
+		$this->aLinkedStylesheets = [];
+		$this->aSaas = [];
+		$this->aAjaxTabs = [];
+		$this->aDefaultParams = [];
+		$this->aBlockParams = [];
 		$this->SetModuleName($sModuleName);
 
 		// Initialize Symfony components
 		$this->InitSymfonyComponents($sViewPath, $sModuleName);
+		$this->InitDebugExtensions();
 	}
 
 	/**
@@ -136,11 +137,27 @@ private function InitSymfonyComponents(string $sViewPath, string $sModuleName):
 		// Twig environment
 		$aAdditionalPaths[] = APPROOT.'lib/symfony/twig-bridge/Resources/views/Form';
 		$aAdditionalPaths[] = APPROOT.'templates';
+		foreach (InterfaceDiscovery::GetInstance()->FindItopClasses(iProfilerExtension::class) as $sExtension) {
+			/** @var \Combodo\iTop\Application\TwigBase\Controller\iProfilerExtension $oExtensionInstance */
+			$oExtensionInstance = $sExtension::GetInstance();
+			$path = $oExtensionInstance->GetTemplatesPath();
+			if (is_string($path)) {
+				if (!in_array($path, $aAdditionalPaths)) {
+					$aAdditionalPaths[] = $path;
+				}
+			} else if (is_array($path)) {
+				foreach ($path as $sPath) {
+					if (!in_array($sPath, $aAdditionalPaths)) {
+						$aAdditionalPaths[] = $sPath;
+					}
+				}
+			}
+		}
 		if (strlen($sViewPath) > 0) {
 			$this->SetViewPath($sViewPath, $aAdditionalPaths);
 			if ($sModuleName != 'core') {
 				try {
-					$this->m_aDefaultParams = ['sIndexURL' => utils::GetAbsoluteUrlModulePage($this->m_sModule, 'index.php')];
+					$this->aDefaultParams = ['sIndexURL' => utils::GetAbsoluteUrlModulePage($this->m_sModule, 'index.php')];
 				}
 				catch (Exception $e) {
 					IssueLog::Error($e->getMessage());
@@ -170,7 +187,7 @@ public function InitFromModule()
 		$this->SetViewPath($sModulePath.'/view');
 		try
 		{
-			$this->m_aDefaultParams = array('sIndexURL' => utils::GetAbsoluteUrlModulePage($this->m_sModule, 'index.php'));
+			$this->aDefaultParams = array('sIndexURL' => utils::GetAbsoluteUrlModulePage($this->m_sModule, 'index.php'));
 		}
 		catch (Exception $e)
 		{
@@ -194,7 +211,7 @@ public function SetViewPath($sViewPath, $aAdditionalPaths = [])
 			},
 		]));
 		$oTwig->addExtension(new FormExtension());
-		$this->m_oTwig = $oTwig;
+		$this->oTwig = $oTwig;
 	}
 
 	/**
@@ -226,10 +243,7 @@ public function HandleOperation()
 		try
 		{
 			$this->CheckAccess();
-			$this->m_sOperation = utils::ReadParam('operation', $this->m_sDefaultOperation);
-
-			$oKPI = new ExecutionKPI();
-			$oKPI->ComputeAndReport('Starting operation '.$this->m_sOperation);
+			$this->m_sOperation = utils::ReadParam('operation', $this->sDefaultOperation);
 
 			if ($this->CallOperation(utils::ToCamelCase($this->m_sOperation))) {
 				return;
@@ -264,7 +278,7 @@ public function HandleAjaxOperation()
 		try
 		{
 			$this->CheckAccess();
-			$this->m_sOperation = utils::ReadParam('operation', $this->m_sDefaultOperation);
+			$this->m_sOperation = utils::ReadParam('operation', $this->sDefaultOperation);
 
 			if ($this->CallOperation(utils::ToCamelCase($this->m_sOperation))) {
 				return;
@@ -320,41 +334,41 @@ public function DisplayPageNotFound()
 	 */
 	protected function CheckAccess()
 	{
-		if ($this->m_bCheckDemoMode && MetaModel::GetConfig()->Get('demo_mode'))
+		if ($this->bCheckDemoMode && MetaModel::GetConfig()->Get('demo_mode'))
 		{
 			throw new Exception("Sorry, iTop is in <b>demonstration mode</b>: this feature is disabled.");
 		}
 
 		$sExecModule = utils::ReadParam('exec_module', "");
 
-		$sConfiguredAccessTokenValue = empty($this->m_sAccessTokenConfigParamId) ? "" : trim(MetaModel::GetConfig()->GetModuleSetting($sExecModule, $this->m_sAccessTokenConfigParamId));
+		$sConfiguredAccessTokenValue = empty($this->sAccessTokenConfigParamId) ? "" : trim(MetaModel::GetConfig()->GetModuleSetting($sExecModule, $this->sAccessTokenConfigParamId));
 
 		if (empty($sExecModule) || empty($sConfiguredAccessTokenValue)){
-			LoginWebPage::DoLogin($this->m_bMustBeAdmin);
+			LoginWebPage::DoLogin($this->bMustBeAdmin);
 		} else {
 			//token mode without login required
 			//N°7147 - Error HTTP 500 due to access_token not URL decoded
-			$sPassedToken = utils::ReadPostedParam($this->m_sAccessTokenConfigParamId, null, false, 'raw_data');
+			$sPassedToken = utils::ReadPostedParam($this->sAccessTokenConfigParamId, null, false, 'raw_data');
 			if (is_null($sPassedToken)){
-				$sPassedToken = utils::ReadParam($this->m_sAccessTokenConfigParamId, null, false, 'raw_data');
+				$sPassedToken = utils::ReadParam($this->sAccessTokenConfigParamId, null, false, 'raw_data');
 			}
 
 			$sDecodedPassedToken = urldecode($sPassedToken);
 			if ($sDecodedPassedToken !== $sConfiguredAccessTokenValue){
-				$sMsg = "Invalid token passed under '$this->m_sAccessTokenConfigParamId' http param to reach '$sExecModule' page.";
+				$sMsg = "Invalid token passed under '$this->sAccessTokenConfigParamId' http param to reach '$sExecModule' page.";
 				IssueLog::Error($sMsg, null,
 					[
 						'sHtmlDecodedToken' => $sDecodedPassedToken,
-						'conf param ID' => $this->m_sAccessTokenConfigParamId
+						'conf param ID' => $this->sAccessTokenConfigParamId
 					]
 				);
 				throw new Exception("Invalid token");
 			}
 		}
 
-		if (!empty($this->m_sMenuId))
+		if (!empty($this->sMenuId))
 		{
-			ApplicationMenu::CheckMenuIdEnabled($this->m_sMenuId);
+			ApplicationMenu::CheckMenuIdEnabled($this->sMenuId);
 		}
 	}
 
@@ -364,7 +378,7 @@ protected function CheckAccess()
 	 */
 	private function GetDefaultParameters()
 	{
-		return $this->m_aDefaultParams;
+		return $this->aDefaultParams;
 	}
 
 	/**
@@ -374,7 +388,7 @@ private function GetDefaultParameters()
 	 */
 	public function DisableInDemoMode()
 	{
-		$this->m_bCheckDemoMode = true;
+		$this->bCheckDemoMode = true;
 	}
 
 	/**
@@ -384,7 +398,7 @@ public function DisableInDemoMode()
 	 */
 	public function AllowOnlyAdmin()
 	{
-		$this->m_bMustBeAdmin = true;
+		$this->bMustBeAdmin = true;
 	}
 
 	/**
@@ -406,7 +420,7 @@ public function AllowOnlyAdmin()
 	 */
 	public function SetAccessTokenConfigParamId(string $m_sAccessTokenConfigParamId): void
 	{
-		$this->m_sAccessTokenConfigParamId = trim($m_sAccessTokenConfigParamId) ?? "";
+		$this->sAccessTokenConfigParamId = trim($m_sAccessTokenConfigParamId) ?? "";
 	}
 
 	/**
@@ -418,7 +432,7 @@ public function SetAccessTokenConfigParamId(string $m_sAccessTokenConfigParamId)
 	 */
 	public function SetMenuId($sMenuId)
 	{
-		$this->m_sMenuId = $sMenuId;
+		$this->sMenuId = $sMenuId;
 	}
 
 	/**
@@ -430,7 +444,7 @@ public function SetMenuId($sMenuId)
 	 */
 	public function SetDefaultOperation($sDefaultOperation)
 	{
-		$this->m_sDefaultOperation = $sDefaultOperation;
+		$this->sDefaultOperation = $sDefaultOperation;
 	}
 
 	/**
@@ -481,42 +495,49 @@ public function DisplayPage($aParams = array(), $sTemplateName = null, $sPageTyp
 		}
 		$aParams = array_merge($this->GetDefaultParameters(), $aParams);
 		$this->CreatePage($sPageType);
-		$sHTMLContent = $this->RenderTemplate($aParams, $sTemplateName, 'html');
+		$sHTMLContent = $this->RenderTemplate($aParams, $sTemplateName, 'html', $sErrorMsg);
 		if ($sHTMLContent !== false) {
 			$this->AddToPage($sHTMLContent);
 		}
-		$sJSScript = $this->RenderTemplate($aParams, $sTemplateName, 'js');
+		$sJSScript = $this->RenderTemplate($aParams, $sTemplateName, 'js', $sErrorMsg);
 		if ($sJSScript !== false) {
 			$this->AddScriptToPage($sJSScript);
 		}
-		$sReadyScript = $this->RenderTemplate($aParams, $sTemplateName, 'ready.js');
+		$sReadyScript = $this->RenderTemplate($aParams, $sTemplateName, 'ready.js', $sErrorMsg);
 		if ($sReadyScript !== false) {
 			$this->AddReadyScriptToPage($sReadyScript);
 		}
-		$sStyle = $this->RenderTemplate($aParams, $sTemplateName, 'css');
+		$sStyle = $this->RenderTemplate($aParams, $sTemplateName, 'css', $sErrorMsg);
 		if ($sStyle !== false) {
 			$this->AddStyleToPage($sStyle);
 		}
 		if ($sHTMLContent === false && $sJSScript === false && $sReadyScript === false && $sStyle === false) {
-			IssueLog::Error("Missing TWIG template for $sTemplateName");
+			if (utils::IsNullOrEmptyString($sErrorMsg)) {
+				$sErrorMsg = "Missing TWIG template for $sTemplateName";
+			}
+			IssueLog::Error($sErrorMsg);
+			$this->AddToPage($this->oTwig->render('application/forms/itop_error.html.twig', ['sControllerError' => $sErrorMsg]));
 		}
-		if (!empty($this->m_aAjaxTabs)) {
-			$this->m_oPage->AddTabContainer('TwigBaseTabContainer');
-			$this->m_oPage->SetCurrentTabContainer('TwigBaseTabContainer');
+
+		$this->ManageDebugExtensions($aParams);
+
+		if (!empty($this->aAjaxTabs)) {
+			$this->oPage->AddTabContainer('TwigBaseTabContainer');
+			$this->oPage->SetCurrentTabContainer('TwigBaseTabContainer');
 		}
-		foreach ($this->m_aAjaxTabs as $sTabCode => $aTabData) {
+		foreach ($this->aAjaxTabs as $sTabCode => $aTabData) {
 			$this->AddAjaxTabToPage($sTabCode, $aTabData['label'], $aTabData['url'], $aTabData['cache']);
 		}
-		foreach ($this->m_aLinkedScripts as $sLinkedScript) {
+		foreach ($this->aLinkedScripts as $sLinkedScript) {
 			$this->AddLinkedScriptToPage($sLinkedScript);
 		}
-		foreach ($this->m_aLinkedStylesheets as $sLinkedStylesheet) {
+		foreach ($this->aLinkedStylesheets as $sLinkedStylesheet) {
 			$this->AddLinkedStylesheetToPage($sLinkedStylesheet);
 		}
-		foreach ($this->m_aSaas as $sSaasRelPath) {
+		foreach ($this->aSaas as $sSaasRelPath) {
 			$this->AddSaasToPage($sSaasRelPath);
 		}
-		foreach ($this->m_aBlockParams as $sKey => $value) {
+		foreach ($this->aBlockParams as $sKey => $value) {
 			$this->SetBlockParamToPage($sKey, $value);
 		}
 		$this->OutputPage();
@@ -646,7 +667,7 @@ final protected function SendFileContent($sFilePath, $sDownloadArchiveName = nul
 	 */
 	public function AddLinkedScript($sScript)
 	{
-		$this->m_aLinkedScripts[] = $sScript;
+		$this->aLinkedScripts[] = $sScript;
 	}
 
 	/**
@@ -659,7 +680,7 @@ public function AddLinkedScript($sScript)
 	 */
 	public function AddLinkedStylesheet($sStylesheet)
 	{
-		$this->m_aLinkedStylesheets[] = $sStylesheet;
+		$this->aLinkedStylesheets[] = $sStylesheet;
 	}
 
 	/**
@@ -671,7 +692,7 @@ public function AddLinkedStylesheet($sStylesheet)
 	 */
 	public function AddSaas($sSaasRelPath)
 	{
-		$this->m_aSaas[] = $sSaasRelPath;
+		$this->aSaas[] = $sSaasRelPath;
 	}
 
 	/**
@@ -690,7 +711,7 @@ public function AddAjaxTab($sCode, $sURL, $bCache = true, $sLabel = null)
 		if (is_null($sLabel)) {
 			$sLabel = Dict::S($sCode);
 		}
-		$this->m_aAjaxTabs[$sCode] = array('label' => $sLabel, 'url' => $sURL, 'cache' => $bCache);
+		$this->aAjaxTabs[$sCode] = array('label' => $sLabel, 'url' => $sURL, 'cache' => $bCache);
 	}
 
 	/**
@@ -699,7 +720,7 @@ public function AddAjaxTab($sCode, $sURL, $bCache = true, $sLabel = null)
 	 */
 	public function SetBlockParams(array $aBlockParams)
 	{
-		$this->m_aBlockParams = $aBlockParams;
+		$this->aBlockParams = $aBlockParams;
 	}
 
 	/**
@@ -707,7 +728,7 @@ public function SetBlockParams(array $aBlockParams)
 	 * @see Controller::SetBreadCrumbEntry() to set breadcrumb content (by default will be title)
 	 */
 	public function DisableBreadCrumb() {
-		$this->m_bIsBreadCrumbEnabled = false;
+		$this->bIsBreadCrumbEnabled = false;
 	}
 
 	/**
@@ -715,7 +736,7 @@ public function DisableBreadCrumb() {
 	 * @see iTopWebPage::SetBreadCrumbEntry()
 	 */
 	public function SetBreadCrumbEntry($sId, $sLabel, $sDescription, $sUrl = '', $sIcon = '') {
-		$this->m_aBreadCrumbEntry = [$sId, $sLabel, $sDescription, $sUrl, $sIcon];
+		$this->aBreadCrumbEntry = [$sId, $sLabel, $sDescription, $sUrl, $sIcon];
 	}
 
 	public function GetRequest(): Request
@@ -764,67 +785,79 @@ public function GetForm(string $type = FormType::class, mixed $data = null, arra
 	 * @return string|false
 	 * @throws \Exception
 	 */
-	private function RenderTemplate($aParams, $sName, $sTemplateFileExtension)
+	private function RenderTemplate(array $aParams, string $sName, string $sTemplateFileExtension, string &$sErrorMsg = null): string|false
 	{
-		if (empty($this->m_oTwig))
+		$sTemplateFile = $sName.'.'.$sTemplateFileExtension.'.twig';
+		if (empty($this->oTwig))
 		{
 			throw new Exception('Not initialized. Call Controller::InitFromModule() or Controller::SetViewPath() before any display');
 		}
 		try
 		{
-			return $this->m_oTwig->render($sName.'.'.$sTemplateFileExtension.'.twig', $aParams);
+			return $this->oTwig->render($sTemplateFile, $aParams);
 		}
 		catch (SyntaxError $e) {
 			IssueLog::Error($e->getMessage().' - file: '.$e->getFile().'('.$e->getLine().')');
+			return $this->oTwig->render('application/forms/itop_error.html.twig', ['sControllerError' => $e->getMessage()]);
 		}
-		catch (Error $e) {
-			if (strpos($e->getMessage(), 'Unable to find template') === false)
+		catch (Exception $e) {
+			$sExceptionMessage = $e->getMessage();
+			if (str_contains($sExceptionMessage, 'at line')) {
+				IssueLog::Error($sExceptionMessage);
+				return $this->oTwig->render('application/forms/itop_error.html.twig', ['sControllerError' => $sExceptionMessage]);
+			}
+			if (!str_contains($sExceptionMessage, 'Unable to find template'))
 			{
-				IssueLog::Error($e->getMessage());
+				IssueLog::Error($sExceptionMessage);
 			}
+			if (is_null($sErrorMsg)) {
+				$sErrorMsg = '';
+			}
+			$sErrorMsg .= $sExceptionMessage."\n";
 		}
 
 		return false;
 	}
 
 	/**
-	 * @param $sPageType
+	 * @param string $sPageType
 	 *
 	 * @throws \Exception
 	 */
-	private function CreatePage($sPageType)
+	private function CreatePage(string $sPageType): void
 	{
 		switch ($sPageType)
 		{
 			case self::ENUM_PAGE_TYPE_HTML:
-				$this->m_oPage = new iTopWebPage($this->GetOperationTitle(), false);
-				$this->m_oPage->add_http_headers();
+				$this->oPage = new iTopWebPage($this->GetOperationTitle(), false);
+				$this->oPage->add_http_headers();
 
-				if ($this->m_bIsBreadCrumbEnabled) {
-					if (count($this->m_aBreadCrumbEntry) > 0) {
-						list($sId, $sTitle, $sDescription, $sUrl, $sIcon) = $this->m_aBreadCrumbEntry;
-						$this->m_oPage->SetBreadCrumbEntry($sId, $sTitle, $sDescription, $sUrl, $sIcon);
+				if ($this->bIsBreadCrumbEnabled) {
+					if (count($this->aBreadCrumbEntry) > 0) {
+						list($sId, $sTitle, $sDescription, $sUrl, $sIcon) = $this->aBreadCrumbEntry;
+						$this->oPage->SetBreadCrumbEntry($sId, $sTitle, $sDescription, $sUrl, $sIcon);
 					}
 				} else {
-					$this->m_oPage->DisableBreadCrumb();
+					$this->oPage->DisableBreadCrumb();
 				}
 
 				break;
 
 			case self::ENUM_PAGE_TYPE_BASIC_HTML:
-				$this->m_oPage = new WebPage($this->GetOperationTitle());
+				$this->oPage = new WebPage($this->GetOperationTitle());
 				break;
 
 			case self::ENUM_PAGE_TYPE_AJAX:
-				$this->m_oPage = new AjaxPage($this->GetOperationTitle());
+				$this->oPage = new AjaxPage($this->GetOperationTitle());
 				break;
 
 			case self::ENUM_PAGE_TYPE_SETUP:
-				$this->m_oPage = new SetupPage($this->GetOperationTitle());
+				$this->oPage = new SetupPage($this->GetOperationTitle());
 				break;
 		}
-		$this->m_oTwig->addGlobal('UIBlockParent', [$this->m_oPage]);
-		$this->m_oTwig->addGlobal('oPage', $this->m_oPage);
+		$this->oTwig->addGlobal('UIBlockParent', [$this->oPage]);
+		$this->oTwig->addGlobal('oPage', $this->oPage);
+		$this->oTwig->addGlobal('debug', utils::IsDevelopmentEnvironment());
 	}
 
 	/**
@@ -853,42 +886,42 @@ public function GetOperation(): string
 	 */
 	private function AddToPage($sContent)
 	{
-		$this->m_oPage->add($sContent);
+		$this->oPage->add($sContent);
 	}
 
 	private function AddReadyScriptToPage($sScript)
 	{
-		$this->m_oPage->add_ready_script($sScript);
+		$this->oPage->add_ready_script($sScript);
 	}
 
 	private function AddScriptToPage($sScript)
 	{
-		$this->m_oPage->add_script($sScript);
+		$this->oPage->add_script($sScript);
 	}
 
 	private function AddLinkedScriptToPage($sLinkedScript)
 	{
-		$this->m_oPage->LinkScriptFromURI($sLinkedScript);
+		$this->oPage->LinkScriptFromURI($sLinkedScript);
 	}
 
 	private function AddLinkedStylesheetToPage($sLinkedStylesheet)
 	{
-		$this->m_oPage->LinkStylesheetFromURI($sLinkedStylesheet);
+		$this->oPage->LinkStylesheetFromURI($sLinkedStylesheet);
 	}
 
 	private function AddStyleToPage($sStyle)
 	{
-		$this->m_oPage->add_style($sStyle);
+		$this->oPage->add_style($sStyle);
 	}
 
 	private function AddSaasToPage($sSaasRelPath)
 	{
-		$this->m_oPage->add_saas($sSaasRelPath);
+		$this->oPage->add_saas($sSaasRelPath);
 	}
 
 	private function AddAjaxTabToPage($sCode, $sTitle, $sURL, $bCache)
 	{
-		$this->m_oPage->AddAjaxTab($sCode, $sURL, $bCache, $sTitle);
+		$this->oPage->AddAjaxTab($sCode, $sURL, $bCache, $sTitle);
 	}
 
 	/**
@@ -898,7 +931,7 @@ private function AddAjaxTabToPage($sCode, $sTitle, $sURL, $bCache)
 	 */
 	private function SetBlockParamToPage(string $sKey, $value)
 	{
-		$this->m_oPage->SetBlockParam($sKey, $value);
+		$this->oPage->SetBlockParam($sKey, $value);
 	}
 
 	/**
@@ -906,6 +939,49 @@ private function SetBlockParamToPage(string $sKey, $value)
 	 */
 	private function OutputPage()
 	{
-		$this->m_oPage->output();
+		$this->oPage->output();
+	}
+
+	private function InitDebugExtensions()
+	{
+		foreach (InterfaceDiscovery::GetInstance()->FindItopClasses(iProfilerExtension::class) as $sExtension) {
+			/** @var \Combodo\iTop\Application\TwigBase\Controller\iProfilerExtension $oExtensionInstance */
+			$oExtensionInstance = $sExtension::GetInstance();
+			$oExtensionInstance->Init();
+		}
+	}
+
+	/**
+	 * @param array $aParams
+	 *
+	 * @return void
+	 * @throws \ReflectionException
+	 * @throws \Twig\Error\LoaderError
+	 * @throws \Twig\Error\RuntimeError
+	 * @throws \Twig\Error\SyntaxError
+	 */
+	private function ManageDebugExtensions(array $aParams): void
+	{
+		foreach (InterfaceDiscovery::GetInstance()->FindItopClasses(iProfilerExtension::class) as $sExtension) {
+			/** @var \Combodo\iTop\Application\TwigBase\Controller\iProfilerExtension $oExtensionInstance */
+			$oExtensionInstance = $sExtension::GetInstance();
+			if ($oExtensionInstance->IsEnabled()) {
+				$sDebugTemplate = $oExtensionInstance->GetDebugTemplate();
+				$aDebugParams = $oExtensionInstance->GetDebugParams($aParams);
+				$aLinkedScripts = $oExtensionInstance->GetLinkedScripts();
+				if (is_array($aLinkedScripts)) {
+					$this->aLinkedScripts = array_merge($this->aLinkedScripts, $aLinkedScripts);
+				}
+				$aLinkedStylesheets = $oExtensionInstance->GetLinkedStylesheets();
+				if (is_array($aLinkedStylesheets)) {
+					$this->aLinkedStylesheets = array_merge($this->aLinkedStylesheets, $aLinkedStylesheets);
+				}
+				$aSaas = $oExtensionInstance->GetSaas();
+				if (is_array($aSaas)) {
+					$this->aSaas = array_merge($this->aSaas, $aSaas);
+				}
+				$this->AddToPage($this->oTwig->render($sDebugTemplate, $aDebugParams));
+			}
+		}
 	}
 }
diff --git a/sources/Application/TwigBase/Controller/iProfilerExtension.php b/sources/Application/TwigBase/Controller/iProfilerExtension.php
new file mode 100644
index 0000000000..ebc5f1bb32
--- /dev/null
+++ b/sources/Application/TwigBase/Controller/iProfilerExtension.php
@@ -0,0 +1,20 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\Application\TwigBase\Controller;
+
+interface iProfilerExtension
+{
+	public static function GetInstance(): iProfilerExtension;
+	public function Init();
+	public function IsEnabled(): bool;
+	public function GetTemplatesPath(): null|string|array;
+	public function GetDebugTemplate(): string;
+	public function GetDebugParams(array $aParams): array;
+	public function GetLinkedScripts(): null|array;
+	public function GetLinkedStylesheets(): null|array;
+	public function GetSaas(): null|array;
+}
\ No newline at end of file
diff --git a/sources/Core/Kpi/KpiLogData.php b/sources/Core/Kpi/KpiLogData.php
index 91a1b147b1..64f0d772e2 100644
--- a/sources/Core/Kpi/KpiLogData.php
+++ b/sources/Core/Kpi/KpiLogData.php
@@ -32,6 +32,8 @@ class KpiLogData
     public $iPeakMemory;
     /** @var array */
     public $aData;
+	// Computed
+	public float $fDuration;
 
     /**
      * @param string $sType
@@ -56,6 +58,7 @@ public function __construct($sType, $sOperation, $sArguments, $fStartTime, $fSto
         $this->iCurrentMemory = $iCurrentMemory;
         $this->iPeakMemory = $iPeakMemory;
         $this->aData = $aData;
+	    $this->fDuration = sprintf('%01.4f', $this->fStopTime - $this->fStartTime);
     }
 
     /**
@@ -74,12 +77,11 @@ public static function GetCSVHeader()
      */
     public function GetCSV()
     {
-        $fDuration = sprintf('%01.4f', $this->fStopTime - $this->fStartTime);
         $sType = $this->RemoveQuotes($this->sType);
         $sOperation = $this->RemoveQuotes($this->sOperation);
         $sArguments = $this->RemoveQuotes($this->sArguments);
         $sExtension = $this->RemoveQuotes($this->sExtension);
-        return "\"$sType\",\"$sOperation\",\"$sArguments\",$this->fStartTime,$this->fStopTime,$fDuration,\"$sExtension\",$this->iInitialMemory,$this->iCurrentMemory,$this->iPeakMemory";
+        return "\"$sType\",\"$sOperation\",\"$sArguments\",$this->fStartTime,$this->fStopTime,$this->fDuration,\"$sExtension\",$this->iInitialMemory,$this->iCurrentMemory,$this->iPeakMemory";
     }
 
     private function RemoveQuotes(string $sEntry): string
diff --git a/templates/application/forms/itop_error.html.twig b/templates/application/forms/itop_error.html.twig
new file mode 100644
index 0000000000..9d6e832c5c
--- /dev/null
+++ b/templates/application/forms/itop_error.html.twig
@@ -0,0 +1,6 @@
+{# @copyright   Copyright (C) 2010-2025 Combodo SARL #}
+{# @license     http://opensource.org/licenses/AGPL-3.0 #}
+
+{% if sControllerError %}
+    {% UIAlert ForDanger { sTitle:'UI:Error:TwigController'|dict_s, sContent:sControllerError } %}{% EndUIAlert %}
+{% endif %}
diff --git a/templates/base/components/input/select/select.html.twig b/templates/base/components/input/select/select.html.twig
index 5fd21518cc..a53d14c055 100644
--- a/templates/base/components/input/select/select.html.twig
+++ b/templates/base/components/input/select/select.html.twig
@@ -5,7 +5,7 @@
         {% include "base/components/input/inputlabel.html.twig" %}
     {% endif %}
     <select id="{{ oUIBlock.GetId() }}" name="{{ oUIBlock.GetName() }}"
-            {% if oUIBlock.GetSubmitOnChange() %} onChange="this.form.trigger('submit');" {% endif %}
+            {% if oUIBlock.GetSubmitOnChange() %} onChange="$(this).parents('form:first').trigger('submit');" {% endif %}
             {% if oUIBlock.IsMultiple() %} multiple {% endif %}
             class="{% if oUIBlock.IsHidden() %}ibo-is-hidden{% endif %}{% if oUIBlock.GetAdditionalCSSClassesAsString() %} {{ oUIBlock.GetAdditionalCSSClassesAsString() }}{% endif %}"
             {% if oUIBlock.GetDataAttributes() %}