Lenze PLC Designer PLC Designer (R3-1) - Manual (Page 458)

L-force | PLC Designer
Menu Commands sorted by Categories
456 DMS 4.1 EN 03/2011 TD29
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How to add a placeholder:
A placeholder in the menu structure definition describes a particular command
category. This is useful for later extensions by additional components. If a new
component brings a menu command of the same category as defined by the
placeholder, this command will be added to that menu, where the placeholder is
located.
Example: In the Menu structure window select menu 'Edit', in the Category window
select 'Clipboard'. Press button New placeholder. The placeholder will be
inserted below entry Edit in the Menu structure:
Abb. 236 Example, placeholder added to menu
This will not effect the current view of the Edit menu in your project resp. in new
projects, until you add any new plug-in providing a command (for example "Select
none") which is assigned to category 'Clipboard'. In this case command "Select none"
will be inserted in the Edit menu at the top position.