Disable menuitem

[IBTC]

Code: Select all

 MENUITEM [ <oMenuItem> PROMPT ] <cPrompt> ;  
 [ ACTION <uAction> ] ;  
 [ ACCELERATOR <cKey> ] ;  
 [ WHEN <uWhen> ]

Is it possible to have this? So we can use in FiveMac also:

<uWhen> An expression to be bloquified and evaluated to check if a menuitem should be enabled or disabled.

Thanks.