[TYPO3] Limit page creation deep

[Laurent Signorini]

Hello,

I would like to limit, just for one kind of BE users, the possibility to 
create pages (and sub pages) beyond 3 levels of deep.
Page root
+ sub page level 1 : OK
   + sub page level 2 : OK
     + sub page level 3 : unauthorized

Is it possible ?

Regards

Laurent