But then what if you Teleport Expiring buildings, and Set buildings, and Evolving buildings... would you need sub tabs within the Teleport tab?
How about if there were separate ways of viewing the inventory with a drop-down for selecting which view is active? You could have Classic View, with everything lumped together; Type View, grouped by Expiring, Set, Evolve, etc,; Chapter View; Alphabetic View; sorted by Footprint; sorted by Pop, Culture, etc.; sorted by per square Pop, Culture, etc..