Ive dragged my two archer skills down to the hotbar slot one and two and a couple melee skills to slot 3 and 4. When I hit the 1 key on the keyboard I can activate the skill in slot 1. When I try to use keys 2,3 or 4 the game says you have to equip a spell first, but I have abilities in those slots. I can though click on the with my mouse and they work. What am I doing wrong to not be able to activate the with my hot keys?...