Would love to know the answer to this too. Right clicking on a mob will trigger whatever ability is in quickslot 1, looking through the preferences and keybinds I cant see any options to either disable it or rebind right click to something else, it just seems to be hardcoded. After having a quick look through the config files I couldn't see where the keybinds are stored, so either I've not looked hard enough or they're stored server side. No doubt this was discussed plenty of times during beta but unfortunatley the forums were purged when beta ended so any previous topics about this were lost... Indeed you can, but unfortunately theres no binding for right click in the key mapping and attempting to bind another quickslot to rmb won't work