I would love the star menu to group my gens in some sort of order, probably best by type, in descending order of seniority. At the moment, they are all over the place, and I can't even figure what the system is (assuming there is one). Reflecting the star layout in the 'send gen' window would also be helpful.
I've only ever done one co-op, and I'm in a good, friendly guild. I wish they would just drop them, or at least stop the explorers from bringing so many back. As with PvP, I tend to play as if they aren't there.