Oh no the engine can support the key binds. I will make modifications to the system to resolve this and update the demo.
You can see your current default weapon (the one you have even after dying) by pressing esc. However, the current weapon I hadn't thought would be an issue. Ill see if I cant find a way to show what your weapon is without adding too many UI elements. I might just add something to Aria physically that shows what weapon she has.
Oh I didn't realize I could set my own custom tags. Ill add a few. Thanks for playing it!