Ok here my toughts and my suggestion, since everyone complain and noone want to make a suggestion, i will be short and clear.
-On the LEFT area ADD a **** tab where ALL quest items goes instead of full up the normal inventory. That is INSANE. When you have something like 10 quests with 10 different quests items, they will full up your inventory like a Hard. WHY?
-Once one item IT'S EQUIPPED it will be MOVED from the general tab to the equipment tab and will not stay on the general tab! Why items stay on the general tab when i equip one? They have to stay on the general tab ONLY i have them unequipped. One example: When i take from my whardrobe a shirt i have it on my hand. But once i equip it, i will have my hands free and my shirt don't became a ghost that stay on my hand. Got it?