HUD is exactly what wxIFM haves. See
http://www.snakesoft.net/wxifm/Unfortunately, wxIFM doesn't have saving/loading layouts, neither toolbar handling.
More unfortunately, it will probably never have that until someone does, but for now the library isn't actively developed.
Anyways, this thread is about wxAUI, there is other for wxIFM.
HUD and tabs handling is in the roadmap for wxAUI, so our option is 1) wait, 2) do-it ourselves, modifying wxAUI, which is
very small, I mean, it's only one
.h and one
.cpp