i think every1 already know how to use hotkey in HKO. this is helpful for u are using item without needing u to open the inventory and then right click the item touse it (and the item need to be in your inventory to be able to use it).

u can use the key on the keyboard (1, 2, 3, 4, 5, 6, 7, 8, 9, and 10…eh? opss, 0 key)  u can use this hokey to use item like healing item, fertilizer (yep, i use that to save time fertilizing), pet food (so that i dont need to open inventory every time i need to feed my pet), seeds (save time planting, careful so that u not ended up planting other seed), equip equipment or tools (yes, u can! ive test it) : ) . hotkey are most useful in fighting creature that u need to use a lot of healing item to fight, and in farming.