I've got UIOP bound to DC, SC, OC, and MC respectively. I've only dropped the wrong upgrade once, and I'll usually still use the pop up menu if I'm dropping the first chamber of a hive to make sure I don't screw it up. There's no need for a quick RT key, and not having one avoids OMG I DROPT AN SC AS FIRST CHAMBER ON A NODE BANT BANT. Definitely no need for a quick key for the hive. I mean really, if you drop so many hives that you need a quick key for it, there's a problem. Evolutions, much the same; it takes time to gestate anyway, no reason to hotkey it so you can hurry up and wait.