Of course it is possible.
Thomas, man of few words!
To change characters...
Character > Change Character.
All playavble characters should have a control interface & at least an inventory interface assigned to them. You could give all the characters the same items as each other by adding same item to each playable character with the add item action part or you can transfer all items from one character to another with: interfaces > give all items to other character (from, to) - or it's even possible for each character to have their own unique interfaces & items etc...