Did you try the mouse control scheme yet?

"Maybe we can keep the keys for movement, pulling, etc and just click the potion buttons?"

To be honest, I would hate to have to grab the mouse just to select/ activate potions when I play the rest of the game with the keyboard, or have I misunderstood your idea ?
The knob could be moved by cursor keys (/up/down/...), too, to select a potion.


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