Inventory tab/ Builder ETA
Please create an inventory tab of all your structures. In one spot you could see all your buildings, what level they are, cost and time to upgrade etc. That way you aren't clicking through from building to building to see how much and how long each one takes. Also, that way it will be easier to find if you missed upgrading a building or bomb. It would also be helpful if your builders were listed with their current status (i.e. Sleeping, upgrading and how long until they're done upgrading). Then, once a builder is available, you can select from that list of what you want them to work on rather than hunting for the specific building.
