Not only tabs but the basic automatic sorting of items in one tab, by their name, for example. Right now when I have many items and move them from one character to the other or sell them - they leave empty spaces and I have to scroll down to look for the needed item down below. Better to make them automatically sort themselves (or make a sort btton) starting from upper left corner of the tab. Also, I'm thinking there should be a button to switch between characters' inventories in the barter window - it's annoying to move all items from one character to the other who has the barter skill.
