If you go to the inventory screen and click on the description icon, then where equip/unequip button should be you can click there and it will equip/unequip the item highlighted. Probably not the best description. If you have any questions about recreating this just ask.
Maybe this will help.
1# go to inv screen.
2# highlight a item.
3# click on description.
4# while description screen is up click where equip/unequip button should be.
5# the item highlighted will equip/unequip.
