I changed the queens by adding a second brood box above paper. I consolidated one colony into one box after a few days. The other was left on two brood, it's now full of brood and stores, and too heavy to lift off. The fifth colony was very strong so I put another brood onto that. A brood box full of stores is too heavy to move.
I MUST NOT DO IT AGAIN. Going to leave for 5 wekks now, when we come back they should be ready to take honey off.