Thanks for the answer but it does'nt seems to work.
I updated init.php with textareas, and a second time comenting mode : exact.
I tryed on pages, events. nothing new
Anyway why it is not on "any" kind of pages for admin ?
Also i wonder why when i create a new page there is no link to "customize" or an easy way to update it. ( i would love some more "in-line" editing/front office editing on oxwall by the way) But maybe i should start an another topic.