It would be really nice if the shop included a (this item is on this hero and equiped (no need to check anymore to see if you have the item)
also a option to right click the item in shop (under inventory ) to unequip/equip it - this will make handling a hero group ALOT easier.
same also apply on the trade window - so you can see all equipment that is both equiped and stored - and that you can quickly equip/unequip - trade and move around items!!
please post if you agree! this is vital in my oppinion!