Problems with delayed printing jobs

Hi,

I'm using KDE in Kiosk mode and are very happy with it except one thing: 
delayed printing jobs.

I want to allow the printing dialog, so the user can choose the numbers of 
copies and stuff like this...
Unfortunately he can also use the feature "scheduled printing" (tab: advanced 
options).
How can I disallow this feature without disallowing the complete printing 
dialog?
I guess in some (very, very few) situations it is better to use  desktop 
environments that don't provide such (useful) features that confuse the 
users ;-).

Thanks for any help/comments/advice,

Michael Hartmann

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kdeglobalsrc:
 [KDE Action Restrictions][$i]
 print/dialog=true
 print/properties=false
 print/options=false
 print/copies=true
 print/selection=false