3 dockable panels on wxAUI

[wxuserbrest at yahoo.fr]

Hi,
i need 3 panels with wxAUI. 2 side by side and the other at the bottom.
I know to do that but i also need the 3 panels to be dockable. With 2
panels dockable and the other (with centerpane) all panels behaves like
with sizer, when i put one panel on floating frame the others take the
place...but with 3 dockable panles it is not the cas. Can someone help
me please ?
Thanks