I'd like to be able to have 2-3 columns of tabs and be able to drag + rearrange, something like Eclipse's draggable tab setup -- one of the few things I like about Eclipse.
I assume this is non-trivial ... how horribly difficult would it be? I'm not very C or GTK experienced, but I got into Geany to learn more and it would be a fun contribution to work on and one day maybe finish? Haha.
Happy Friday!