diff --git a/lib/composer/autoload_classmap.php b/lib/composer/autoload_classmap.php
index b8a59d5851..beb9b11517 100644
--- a/lib/composer/autoload_classmap.php
+++ b/lib/composer/autoload_classmap.php
@@ -430,6 +430,7 @@ return array(
     'Combodo\\iTop\\Dependencies\\NPM\\iTopNPM' => $baseDir . '/sources/Dependencies/NPM/iTopNPM.php',
     'Combodo\\iTop\\DesignDocument' => $baseDir . '/core/designdocument.class.inc.php',
     'Combodo\\iTop\\DesignElement' => $baseDir . '/core/designdocument.class.inc.php',
+    'Combodo\\iTop\\FormType\\Base\\AbstractType' => $baseDir . '/sources/FormType/Base/AbstractType.php',
     'Combodo\\iTop\\FormType\\Base\\HiddenType' => $baseDir . '/sources/FormType/Base/HiddenType.php',
     'Combodo\\iTop\\FormType\\Base\\TextType' => $baseDir . '/sources/FormType/Base/TextType.php',
     'Combodo\\iTop\\FormType\\Base\\TextareaType' => $baseDir . '/sources/FormType/Base/TextareaType.php',
diff --git a/lib/composer/autoload_static.php b/lib/composer/autoload_static.php
index 8185589d3f..3b83f838d5 100644
--- a/lib/composer/autoload_static.php
+++ b/lib/composer/autoload_static.php
@@ -785,6 +785,7 @@ class ComposerStaticInit7f81b4a2a468a061c306af5e447a9a9f
         'Combodo\\iTop\\Dependencies\\NPM\\iTopNPM' => __DIR__ . '/../..' . '/sources/Dependencies/NPM/iTopNPM.php',
         'Combodo\\iTop\\DesignDocument' => __DIR__ . '/../..' . '/core/designdocument.class.inc.php',
         'Combodo\\iTop\\DesignElement' => __DIR__ . '/../..' . '/core/designdocument.class.inc.php',
+        'Combodo\\iTop\\FormType\\Base\\AbstractType' => __DIR__ . '/../..' . '/sources/FormType/Base/AbstractType.php',
         'Combodo\\iTop\\FormType\\Base\\HiddenType' => __DIR__ . '/../..' . '/sources/FormType/Base/HiddenType.php',
         'Combodo\\iTop\\FormType\\Base\\TextType' => __DIR__ . '/../..' . '/sources/FormType/Base/TextType.php',
         'Combodo\\iTop\\FormType\\Base\\TextareaType' => __DIR__ . '/../..' . '/sources/FormType/Base/TextareaType.php',
diff --git a/sources/FormType/Base/AbstractType.php b/sources/FormType/Base/AbstractType.php
new file mode 100644
index 0000000000..70a24b5834
--- /dev/null
+++ b/sources/FormType/Base/AbstractType.php
@@ -0,0 +1,57 @@
+<?php
+/*
+ * @copyright   Copyright (C) 2010-2025 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+namespace Combodo\iTop\FormType\Base;
+
+use Symfony\Component\Form\AbstractType as SymfonyAbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\FormEvent;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+
+abstract class AbstractType extends SymfonyAbstractType
+{
+	public function buildForm(FormBuilderInterface $builder, array $options)
+	{
+		parent::buildForm($builder, $options);
+		if (isset($options['callback']) && isset($options['hook_type'])) {
+			$builder->addEventListener($options['hook_type'], function (FormEvent $event) use ($options): void {
+				\IssueLog::Info($event->getForm()->getName().' '.$options['hook_type']);
+				call_user_func($options['callback'], $event);
+			});
+		}
+	}
+
+	public function configureOptions(OptionsResolver $resolver)
+	{
+		parent::configureOptions($resolver);
+		$resolver->setDefined('callback')
+			->setAllowedTypes('callback', 'callable');
+		$resolver->setDefined('hook_type')
+			->setAllowedTypes('hook_type', 'string');
+	}
+
+	/**
+	 * Called only when GetPrerequisites() is not null
+	 * @param array $aUserOptions
+	 * @param array $aModelData
+	 *
+	 * @return array|null null if field is not present
+	 */
+	public function BuildOptions(array $aUserOptions, array $aModelData): ?array
+	{
+		return null;
+	}
+
+	/**
+	 * @param array $aUserOptions
+	 *
+	 * @return array|null null if not dynamic
+	 */
+	public function GetPrerequisites(array $aUserOptions): ?array
+	{
+		return null;
+	}
+}
\ No newline at end of file
diff --git a/sources/FormType/Orm/AttCodeGroupByType.php b/sources/FormType/Orm/AttCodeGroupByType.php
index 531012d3a3..46b59bf7b2 100644
--- a/sources/FormType/Orm/AttCodeGroupByType.php
+++ b/sources/FormType/Orm/AttCodeGroupByType.php
@@ -6,36 +6,41 @@
 
 namespace Combodo\iTop\FormType\Orm;
 
+use Combodo\iTop\FormType\Base\AbstractType;
 use Dict;
 use Exception;
-use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType as SymfonyChoiceType;
-use Symfony\Component\Form\FormBuilderInterface;
-use Symfony\Component\Form\FormEvent;
-use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class AttCodeGroupByType extends AbstractType
 {
-	public function buildForm(FormBuilderInterface $builder, array $options)
-	{
-		$builder->addEventListener($options['hook_type'], function (FormEvent $event) use ($options): void {
-			\IssueLog::Info($event->getForm()->getName().' '.$options['hook_type']);
-			call_user_func($options['callback'], $event);
-		});
-	}
-
 	public function getParent()
 	{
 		return SymfonyChoiceType::class;
 	}
 
-	public function configureOptions(OptionsResolver $resolver)
+	public function BuildOptions(array $aUserOptions, array $aModelData): ?array
 	{
-		parent::configureOptions($resolver);
-		$resolver->setDefined('callback')
-			->setAllowedTypes('callback', 'callable');
-		$resolver->setDefined('hook_type')
-			->setAllowedTypes('hook_type', 'string');
+		$oModelReflection = new \ModelReflectionRuntime();
+		$sClassOrOql = $aModelData[$aUserOptions['source_class']];
+		if ($oModelReflection->IsValidClass($sClassOrOql)) {
+			$sClass = $sClassOrOql;
+		} else {
+			try {
+				$oQuery = $oModelReflection->GetQuery($sClassOrOql);
+			} catch (Exception $e) {
+				return null;
+			}
+			$sClass = $oQuery->GetClass();
+		}
+		$aFormOptions['choices'] = $this->GetGroupByOptions($sClass);
+		$aFormOptions['multiple'] = false;
+
+		return $aFormOptions;
+	}
+
+	public function GetPrerequisites(array $aUserOptions): ?array
+	{
+		return [$aUserOptions['source_class']];
 	}
 
 	protected function GetGroupByOptions($sClassOrOql)
@@ -104,29 +109,4 @@ class AttCodeGroupByType extends AbstractType
 		}
 		return array_flip($aGroupBy);
 	}
-
-	public function BuildOptions(array $aUserOptions, array $aModelData): ?array
-	{
-		$oModelReflection = new \ModelReflectionRuntime();
-		$sClassOrOql = $aModelData[$aUserOptions['source_class']];
-		if ($oModelReflection->IsValidClass($sClassOrOql)) {
-			$sClass = $sClassOrOql;
-		} else {
-			try {
-				$oQuery = $oModelReflection->GetQuery($sClassOrOql);
-			} catch (Exception $e) {
-				return null;
-			}
-			$sClass = $oQuery->GetClass();
-		}
-		$aFormOptions['choices'] = $this->GetGroupByOptions($sClass);
-		$aFormOptions['multiple'] = false;
-
-		return $aFormOptions;
-	}
-
-	public function GetPrerequisites(array $aUserOptions): ?array
-	{
-		return [$aUserOptions['source_class']];
-	}
 }
\ No newline at end of file
diff --git a/sources/FormType/Orm/QueryType.php b/sources/FormType/Orm/QueryType.php
index 436183cdd4..5f11471d63 100644
--- a/sources/FormType/Orm/QueryType.php
+++ b/sources/FormType/Orm/QueryType.php
@@ -6,34 +6,12 @@
 
 namespace Combodo\iTop\FormType\Orm;
 
-use Symfony\Component\Form\AbstractType;
+use Combodo\iTop\FormType\Base\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\TextareaType as SymfonyTextareaType;
-use Symfony\Component\Form\FormBuilderInterface;
-use Symfony\Component\Form\FormEvent;
-use Symfony\Component\Form\FormEvents;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 
 class QueryType extends AbstractType
 {
-	public function buildForm(FormBuilderInterface $builder, array $options)
-	{
-		$builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) use ($options) {
-			\IssueLog::Info($event->getForm()->getName().' PRE_SET_DATA');
-		});
-
-		$builder->addEventListener(FormEvents::POST_SET_DATA, function (FormEvent $event) use ($options): void {
-			\IssueLog::Info($event->getForm()->getName().' POST_SET_DATA');
-		});
-
-		$builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
-			\IssueLog::Info($event->getForm()->getName().' PRE_SUBMIT');
-		});
-
-		$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) use ($options): void {
-			\IssueLog::Info($event->getForm()->getName().' POST_SUBMIT');
-		});
-	}
-
 	public function getParent(): ?string
 	{
 		return SymfonyTextareaType::class;
diff --git a/sources/FormType/Orm/ValuesFromAttcodeType.php b/sources/FormType/Orm/ValuesFromAttcodeType.php
index d4f56c270f..e44b57e149 100644
--- a/sources/FormType/Orm/ValuesFromAttcodeType.php
+++ b/sources/FormType/Orm/ValuesFromAttcodeType.php
@@ -6,45 +6,17 @@
 
 namespace Combodo\iTop\FormType\Orm;
 
-use Symfony\Component\Form\AbstractType;
+use Combodo\iTop\FormType\Base\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType as SymfonyChoiceType;
-use Symfony\Component\Form\FormBuilderInterface;
-use Symfony\Component\Form\FormEvent;
-use Symfony\Component\Form\FormEvents;
-use Symfony\Component\OptionsResolver\OptionsResolver;
 use utils;
 
 class ValuesFromAttcodeType extends AbstractType
 {
-
-
-	public function buildForm(FormBuilderInterface $builder, array $options)
-	{
-		$builder->addEventListener(FormEvents::PRE_SET_DATA, function (FormEvent $event) {
-			\IssueLog::Info($event->getForm()->getName().' PRE_SET_DATA');
-		});
-		$builder->addEventListener(FormEvents::POST_SET_DATA, function (FormEvent $event) {
-			\IssueLog::Info($event->getForm()->getName().' POST_SET_DATA');
-		});
-		$builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
-			\IssueLog::Info($event->getForm()->getName().' PRE_SUBMIT');
-		});
-		$builder->addEventListener(FormEvents::POST_SUBMIT, function (FormEvent $event) {
-			\IssueLog::Info($event->getForm()->getName().' POST_SUBMIT');
-		});
-	}
-
 	public function getParent()
 	{
 		return SymfonyChoiceType::class;
 	}
 
-	public function configureOptions(OptionsResolver $resolver)
-    {
-	    parent::configureOptions($resolver);
-	    $resolver->setDefault('attr', ['class' => 'ibo-input ibo-input-select']);
-    }
-
 	public function BuildOptions(array $aUserOptions, array $aModelData): ?array
 	{
 		$sAttCode = $aModelData[$aUserOptions['source_attcode']] ?? null;