diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 0f1311c..0777c94 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,9 +4,8 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="940e1630-c825-4d4c-be80-bc11f543c122" name="Changes" comment="fix scrollbar view with set self.y_height = 330 to self.y_height = 340">
+    <list default="true" id="940e1630-c825-4d4c-be80-bc11f543c122" name="Changes" comment="in msg_window two further parameters to be added to the pass, so height and wide can also be specified.&#10;In rename, messages come now if new names do not fit&#10;Fix Index Error on msg_window()">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/wg_func.py" beforeDir="false" afterPath="$PROJECT_DIR$/wg_func.py" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/wg_main.py" beforeDir="false" afterPath="$PROJECT_DIR$/wg_main.py" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -41,23 +40,23 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;ASKED_ADD_EXTERNAL_FILES&quot;: &quot;true&quot;,
-    &quot;Python.INSTALL.executor&quot;: &quot;Run&quot;,
-    &quot;Python.install.executor&quot;: &quot;Run&quot;,
-    &quot;Python.main.executor&quot;: &quot;Run&quot;,
-    &quot;Python.messagebox.executor&quot;: &quot;Run&quot;,
-    &quot;Python.start_wg.executor&quot;: &quot;Run&quot;,
-    &quot;Python.wg_func.executor&quot;: &quot;Run&quot;,
-    &quot;Python.wg_main.executor&quot;: &quot;Run&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;Shell Script.install.executor&quot;: &quot;Run&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;main&quot;,
-    &quot;last_opened_file_path&quot;: &quot;/home/punix/Pyapps/wire-py&quot;,
-    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.fileTypes&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "ASKED_ADD_EXTERNAL_FILES": "true",
+    "Python.INSTALL.executor": "Run",
+    "Python.install.executor": "Run",
+    "Python.main.executor": "Run",
+    "Python.messagebox.executor": "Run",
+    "Python.start_wg.executor": "Run",
+    "Python.wg_func.executor": "Run",
+    "Python.wg_main.executor": "Run",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "Shell Script.install.executor": "Run",
+    "git-widget-placeholder": "main",
+    "last_opened_file_path": "/home/punix/Pyapps/wire-py",
+    "settings.editor.selected.configurable": "preferences.lookFeel"
   }
-}</component>
+}]]></component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$" />
@@ -134,14 +133,6 @@
       <option name="presentableId" value="Default" />
       <updated>1723279982210</updated>
     </task>
-    <task id="LOCAL-00001" summary="Tunnel Start and Stop Work">
-      <option name="closed" value="true" />
-      <created>1723666001005</created>
-      <option name="number" value="00001" />
-      <option name="presentableId" value="LOCAL-00001" />
-      <option name="project" value="LOCAL" />
-      <updated>1723666001005</updated>
-    </task>
     <task id="LOCAL-00002" summary="Tunnel Start and Stop Work">
       <option name="closed" value="true" />
       <created>1723666477079</created>
@@ -526,7 +517,15 @@
       <option name="project" value="LOCAL" />
       <updated>1727028915701</updated>
     </task>
-    <option name="localTasksCounter" value="50" />
+    <task id="LOCAL-00050" summary="in msg_window two further parameters to be added to the pass, so height and wide can also be specified.&#10;In rename, messages come now if new names do not fit&#10;Fix Index Error on msg_window()">
+      <option name="closed" value="true" />
+      <created>1727118598759</created>
+      <option name="number" value="00050" />
+      <option name="presentableId" value="LOCAL-00050" />
+      <option name="project" value="LOCAL" />
+      <updated>1727118598760</updated>
+    </task>
+    <option name="localTasksCounter" value="51" />
     <servers />
   </component>
   <component name="UnknownFeatures">
@@ -567,7 +566,6 @@
   </component>
   <component name="VcsManagerConfiguration">
     <option name="ADD_EXTERNAL_FILES_SILENTLY" value="true" />
-    <MESSAGE value="fixes on empty Listbox now is disable and now works autoconnect label with read and write, delete works now with read and write" />
     <MESSAGE value="add Frame widget 3&#10;for Buttons and Listbox with Scrollbar.&#10;all Widgets new format&#10;delete works now of disable checkbox when Listbox empty (part two)" />
     <MESSAGE value="little fixes" />
     <MESSAGE value="little fixes replace os.system with check_call&#10;first steps in install Script add wg_start.service file" />
@@ -592,7 +590,8 @@
     <MESSAGE value="Descriptions added in wg_func-py" />
     <MESSAGE value="If tunnel is renamed and this is in the car start,&#10;is now renamed the label" />
     <MESSAGE value="fix scrollbar view with set self.y_height = 330 to self.y_height = 340" />
-    <option name="LAST_COMMIT_MESSAGE" value="fix scrollbar view with set self.y_height = 330 to self.y_height = 340" />
+    <MESSAGE value="in msg_window two further parameters to be added to the pass, so height and wide can also be specified.&#10;In rename, messages come now if new names do not fit&#10;Fix Index Error on msg_window()" />
+    <option name="LAST_COMMIT_MESSAGE" value="in msg_window two further parameters to be added to the pass, so height and wide can also be specified.&#10;In rename, messages come now if new names do not fit&#10;Fix Index Error on msg_window()" />
   </component>
   <component name="XDebuggerManager">
     <breakpoint-manager>
diff --git a/wg_main.py b/wg_main.py
index 8655c08..12150cd 100755
--- a/wg_main.py
+++ b/wg_main.py
@@ -215,6 +215,7 @@ class FrameWidgets(ttk.Frame):
         self.lb_rename.config(state='disable')
 
         def tl_rename():
+            special_characters = ['\\', '/', '{', '}', ' ']
 
             if len(self.lb_rename.get()) > 12:
                 """img_w, img_i, w_title, w_txt hand over"""
@@ -236,14 +237,14 @@ class FrameWidgets(ttk.Frame):
                 y = 140  # height
                 msg_window(iw, ii, wt, msg_t, x, y)
 
-            elif ' ' in self.lb_rename.get():
+            elif any(ch in special_characters for ch in self.lb_rename.get()):
                 """img_w, img_i, w_title, w_txt x, y hand over"""
                 iw = r'/usr/share/icons/wp-icons/64/info.png'
                 ii = r'/usr/share/icons/wp-icons/48/wg_msg.png'
                 wt = 'Renaming not possible'
-                msg_t = 'Please do not use blanks.'
-                x = 280  # width
-                y = 140  # height
+                msg_t = 'No valid sign. These must not be used.\nBlank, Slash, Backslash and { }'
+                x = 370  # width
+                y = 130  # height
                 msg_window(iw, ii, wt, msg_t, x, y)
             else:
                 try: