[Lazarus] TTabSheet extending - where is the editor in TPageControl or a hook

[Andreas Frieß]

Hi,

i want to extend the TTabSheet to TMyTabSheet, but i didnt find the 
editor for TPageControl to say not to use TTabSheet. The editor is 
normaly comming up if you make a rightclick in TPageControl and say, 
add, insert or move left/right a TTabSheet. I want to change this from 
TTabSheet to use my TMyTabSheet.

Is there a hook or can i register my own editor ?


Thanks

Andreas