I have used xkb to remap the right windows key (RWIN) to Hyper_R because I want to use it with AutoKey for some special shortcuts. I did it by editing
/usr/share/X11/xkb/symbols/pc
modifying the RWIN line:
key <RWIN> { [ Hyper_R ] };
(Here's the answer that guided me)
From what I can tell, this works and the right Windows key now fires Hyper_R. However, It seems that in Ubuntu (Xubuntu to be exact), Hyper and Super somehow are doing the same thing. So Super + e launches the editor, and so does Hyper + e.
I'm not sure why this is or where I can change this behavior. I want Hyper and Super to be different modifiers.