agw auimanager docking icons/arrows

I’m using the agw aui version that comes with the wxpython stable version.

Is it possible to limit what docking arrows are shown when I want to dock a pane?
For example, if I want to do only vertical docking I would like to see only the top and bottom docking arrows, but the manager will display docking icons(arrows?) for all docking directions(in my case, left and right as well).