Use the following key combinations to get the desired effect:
Get all powers: X, X, F, E, Tab, F
Upgrade all powers: Tab, click Mouse Wheel, Tab, E, X, E
Refill ammo: Click Mouse Wheel, Space, Tab, Tab, F, X
Get full arrowheads: Space, click Mouse Wheel t, E, F, Left Mouse Button
Refill lives: Tab, E, E, X, Space, click Mouse Wheel
Get global items: Click Mouse Wheel, X, E, E, Right Mouse Button, Tab, F