incafutbol

Hi, I didn't see this problem anywhere else but I am hitting the tab button to go into my inventory and I want to drag an item to one of the hotkeys 1 through 0 but I don't see my hotkey anywhere. I've watched videos on how to put an item on your hotkey but for some reason I'm not seeing my hotkey to put anything in. How do I get my hotkey to show up so I can drag items to it?