diff --git a/build.gradle.kts b/build.gradle.kts
index 4a3a58e..c449662 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -4,7 +4,7 @@ plugins {
   id("org.jetbrains.intellij.platform") version "2.7.0"
 }
 group = "com.sdk.dynform.tools"
-version = "3.2.5"
+version = "3.2.6"
 
 repositories {
   mavenCentral()
@@ -38,19 +38,18 @@ intellijPlatform {
     }
 
     changeNotes = """
+        <h2>[3.2.6]</h2>
+        <ul>
+          <li><strong>Structural Validation:</strong> Introduced a new Annotator to validate that all fields used in <code>&lt;LAYOUT&gt;</code> and <code>&lt;FILTERS&gt;</code> are correctly defined in their respective <code>&lt;FIELDS&gt;</code> sections.</li>
+          <li><strong>Generator Logic Update:</strong> Refined the column width calculation for NUMBER and DATE types in the ActionBean generator for better XML compatibility.</li>
+          <li><strong>Improved File Opening:</strong> Switched to <code>FileEditorManagerEx</code> for opening generated files, ensuring better window focus and management in recent IDE versions.</li>
+        </ul>
         <h2>[3.2.5]</h2>
         <ul>
           <li><strong>Dataset to Form Mapping:</strong> Implemented comprehensive reference and completion support for the <code>FORM-NAME</code> attribute in <code>DATASET > FIELDS > FIELD</code>.</li>
           <li><strong>Smart Field Resolution:</strong> <code>FORM-NAME</code> now correctly resolves to hidden fields in <code>FORM_ENTRY > FIELDS</code> and any named fields within <code>FORM_ENTRY > LAYOUT</code>.</li>
           <li><strong>Recursive Form Scanning:</strong> Enhanced field discovery to scan across all form entries in the current and recursively included <code>.frml</code> files.</li>
         </ul>
-        <h2>[3.2.4]</h2>
-        <ul>
-          <li><strong>Persistent Generation Directories:</strong> Generator now remembers the last used directory for Action Beans and Dataset XMLs independently per project.</li>
-          <li><strong>Auto-Open Generated Files:</strong> Added configuration to automatically open newly created files in the editor, with a customizable limit on the number of files.</li>
-          <li><strong>Strict Project-Relative Paths:</strong> I18n and XSD configuration now strictly enforces file selection within the project root and stores paths as relative for maximum portability.</li>
-          <li><strong>Smart File Browser:</strong> Improved file picker logic to automatically start at the current configured directory if it's within the project, falling back to the project root otherwise.</li>
-        </ul>
         <h2>[3.2.3]</h2>
         <ul>
           <li><strong>Advanced Data Referencing:</strong> Implemented comprehensive reference and completion support for <code>&lt;FOREIGN-DATASETS&gt;</code> and <code>&lt;MASTER-DATA&gt;</code> structures.</li>
diff --git a/src/main/java/com/sdk/dynform/tools/actionbean/GeneratorServices.java b/src/main/java/com/sdk/dynform/tools/actionbean/GeneratorServices.java
index f5f6793..1b8d299 100644
--- a/src/main/java/com/sdk/dynform/tools/actionbean/GeneratorServices.java
+++ b/src/main/java/com/sdk/dynform/tools/actionbean/GeneratorServices.java
@@ -5,7 +5,7 @@ import com.intellij.database.model.DasTableKey;
 import com.intellij.database.psi.DbTable;
 import com.intellij.database.util.DasUtil;
 import com.intellij.openapi.application.ApplicationManager;
-import com.intellij.openapi.fileEditor.FileEditorManager;
+import com.intellij.openapi.fileEditor.ex.FileEditorManagerEx;
 import com.intellij.openapi.progress.ProgressIndicator;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.vfs.VirtualFile;
@@ -62,7 +62,9 @@ public class GeneratorServices {
     private void openInEditor(VirtualFile file) {
         if (file != null) {
             ApplicationManager.getApplication().invokeLater(() -> {
-                FileEditorManager.getInstance(project).openFile(file, true);
+                FileEditorManagerEx manager = FileEditorManagerEx.getInstanceEx(project);
+                // Using 3-parameter openFile from FileEditorManagerEx to ensure it's handled correctly
+                manager.openFile(file, true, true);
             });
         }
     }
@@ -224,16 +226,19 @@ public class GeneratorServices {
             colModel.put("isPk", primaryKeys.contains(colName));
             colModel.put("customType", dataType);
 
+            int width = column.getDasType().toDataType().getLength();
+
             // XML Specific fields
             String xmlType = "TEXT";
             if ("NUMBER".equals(dataType)) {
                 xmlType = "NUMBER";
+                width = String.valueOf(width).length();
             } else if ("DATE".equals(dataType)) {
                 xmlType = "DATE";
+                width = "dd/mm/yyyy hh:mm:ss".length();
             }
-            colModel.put("xmlType", xmlType);
 
-            int width = column.getDasType().toDataType().getLength();
+            colModel.put("xmlType", xmlType);
             colModel.put("width", Math.max(width, 0));
 
             // Label generation: Use field comment if available, otherwise fallback to generated key
@@ -254,4 +259,4 @@ public class GeneratorServices {
 
         return model;
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/com/sdk/dynform/tools/dynform/DynFormAnnotator.java b/src/main/java/com/sdk/dynform/tools/dynform/DynFormAnnotator.java
new file mode 100644
index 0000000..4cbe8d6
--- /dev/null
+++ b/src/main/java/com/sdk/dynform/tools/dynform/DynFormAnnotator.java
@@ -0,0 +1,79 @@
+package com.sdk.dynform.tools.dynform;
+
+import com.intellij.lang.annotation.AnnotationHolder;
+import com.intellij.lang.annotation.Annotator;
+import com.intellij.lang.annotation.HighlightSeverity;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.xml.XmlAttribute;
+import com.intellij.psi.xml.XmlAttributeValue;
+import com.intellij.psi.xml.XmlTag;
+import org.jetbrains.annotations.NotNull;
+
+public class DynFormAnnotator implements Annotator {
+    @Override
+    public void annotate(@NotNull PsiElement element, @NotNull AnnotationHolder holder) {
+        if (!(element instanceof XmlAttributeValue attrValue)) return;
+        
+        PsiElement parent = attrValue.getParent();
+        if (!(parent instanceof XmlAttribute attr)) return;
+        
+        if (!"NAME".equals(attr.getName())) return;
+        
+        PsiElement tagElem = attr.getParent();
+        if (!(tagElem instanceof XmlTag tag) || !"FIELD".equals(tag.getName())) return;
+
+        // Check if this FIELD is inside a LAYOUT tag
+        XmlTag layoutTag = tag.getParentTag();
+        while (layoutTag != null && !"LAYOUT".equals(layoutTag.getName())) {
+            layoutTag = layoutTag.getParentTag();
+        }
+        
+        if (layoutTag == null) return;
+
+        // The "Owner" of the LAYOUT (e.g., FORM_ENTRY, FILTERS, GRID-EDITOR)
+        XmlTag ownerTag = layoutTag.getParentTag();
+        if (ownerTag == null) return;
+        
+        String fieldName = attrValue.getValue();
+        if (fieldName == null || fieldName.isEmpty()) return;
+
+        // Look for the FIELDS tag that is a sibling of the current LAYOUT
+        XmlTag fieldsTag = ownerTag.findFirstSubTag("FIELDS");
+        if (fieldsTag == null) {
+            holder.newAnnotation(HighlightSeverity.ERROR, "No <FIELDS> definition found in <" + ownerTag.getName() + ">")
+                    .range(attrValue.getTextRange())
+                    .create();
+            return;
+        }
+
+        if (!isFieldDefined(fieldsTag, fieldName)) {
+            holder.newAnnotation(HighlightSeverity.ERROR, "Field '" + fieldName + "' is not defined in <FIELDS> of <" + ownerTag.getName() + ">")
+                    .range(attrValue.getTextRange())
+                    .create();
+        }
+    }
+
+    private boolean isFieldDefined(XmlTag fieldsTag, String name) {
+        for (XmlTag field : fieldsTag.findSubTags("FIELD")) {
+            if (name.equals(field.getAttributeValue("NAME"))) {
+                return true;
+            }
+        }
+        // Also check inside SECTIONS or ROWS if any
+        for (XmlTag sub : fieldsTag.getSubTags()) {
+            if ("SECTION".equals(sub.getName()) || "ROW".equals(sub.getName())) {
+                if (isFieldDefined(sub, name)) return true;
+            }
+        }
+        return false;
+    }
+
+    private static boolean hasAncestorWithName(XmlTag tag, String name) {
+        XmlTag current = tag.getParentTag();
+        while (current != null) {
+            if (name.equals(current.getName())) return true;
+            current = current.getParentTag();
+        }
+        return false;
+    }
+}
diff --git a/src/main/resources/META-INF/plugin.xml b/src/main/resources/META-INF/plugin.xml
index 333f669..00656df 100644
--- a/src/main/resources/META-INF/plugin.xml
+++ b/src/main/resources/META-INF/plugin.xml
@@ -34,6 +34,12 @@
     ]]></description>
 
     <change-notes><![CDATA[
+      <h2>[3.2.6]</h2>
+        <ul>
+          <li><strong>Structural Validation:</strong> Introduced a new Annotator to validate that all fields used in <code>&lt;LAYOUT&gt;</code> and <code>&lt;FILTERS&gt;</code> are correctly defined in their respective <code>&lt;FIELDS&gt;</code> sections.</li>
+          <li><strong>Generator Logic Update:</strong> Refined the column width calculation for NUMBER and DATE types in the ActionBean generator for better XML compatibility.</li>
+          <li><strong>Improved File Opening:</strong> Switched to <code>FileEditorManagerEx</code> for opening generated files, ensuring better window focus and management in recent IDE versions.</li>
+        </ul>
       <h2>[3.2.5]</h2>
         <ul>
           <li><strong>Dataset to Form Mapping:</strong> Implemented comprehensive reference and completion support for the <code>FORM-NAME</code> attribute in <code>DATASET > FIELDS > FIELD</code>.</li>
@@ -188,5 +194,6 @@
         <completion.contributor language="XML" implementationClass="com.sdk.dynform.tools.dynform.DynFormCompletionContributor"/>
         <completion.contributor language="JavaScript" implementationClass="com.sdk.dynform.tools.dynform.DynFormCompletionContributor"/>
 
+        <annotator language="XML" implementationClass="com.sdk.dynform.tools.dynform.DynFormAnnotator"/>
     </extensions>
 </idea-plugin>