Deleting user-defined attributes
                                        1. From the Network menu, choose User-defined attributes.
The List (Attributes) opens and the display is already restricted to user-defined attributes.
2. In the list, click the user-defined attribute that you want to delete.
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                                                         Note: If you want to delete multiple attributes at the same time, hold down the Ctrl key and click the attributes.  | 
                                                
3.  On the toolbar, click the Delete symbol 
.
The user-defined attribute is deleted.
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                                                         Tip: You can also delete user-defined attributes directly in the lists of the corresponding network objects. Call the shortcut menu via the column header of the desired user-defined attribute and select the entry Delete attribute.  | 
                                                

