Sorry but no, I have 2 Trays plus the BO Trays at the very bottom. So while I'll admit to not being a genius, I have the maximum number of trays open. So no. Being T5 I still don't have enough space with the 2 option for the Skill Trays and the BO Trays (12 powers). The 3rd Skill Tray option nixes the BO trays and you lose 2 slots for powers so no.