Ability to use grog and gold in collectors for upgrades

i think we should be able to use the grog and gold in the collectors in combination with resources in the storages for upgrades. Since invaders are able to plunder loot from the collectors, it's only fair that we should be able to use those resources when we need them for upgrades without having to collect them to storage units first. All resources that have been collected should be usable whether they have been moved to storage or not, since both can be looted.

 

But it's half the fun of a game like this clicking the little icons that pop up like whack a mole!