Increase from several colonies
This is a sort of artificial swarm that isn't quite. As with other methods of increase, this is one that has as many variations as your knowledge and imagination will allow.
This method is essentially an artificial swarm manipulation, with the increase made up from combs from two or more colonies and the flying bees from one other. Although the operation can be done anywhen, it is best done on a good flying day, when there is a good nectar flow on and with a couple of hours of flying left in the day.
This is what you do:-
The colonies that have donated the combs should need no more treatment than if the combs had not been removed. If they are honey producing colonies there should be no setback at all. If the combs came from smaller colonies they may need to be checked.
The colony that has donated the flying bees will be setback a little, but in my experience they recover quite quickly and in a couple of days they are usually flying strongly again. If they had built swarm cells you have the choice of giving the queen to the new colony, but caged for 24 hours, or leaving where she is. Either way the queen cells need dealing with. Don't be fooled into thinking the colony will remove the queen cells because it has lost the flying bees. They don't always and yes, they can swarm!
In manipulations like this you are often advised to feed, but there is usually no need to. I dislike feeding in the summer. Remember, this is likely be done in a nectar flow.
In slightly different forms I have used this method regularly. I have made up one full colony from several that have been preparing to swarm that I have put a super on straight away. I have also made up several nucs, such as 2 frame nucs and put in the positions of existing nucs that have been getting too strong for my purpose.
The number of combs in the new colony will determine if a super is required or not. If you are unable to get much food into the brood box it might be worth putting a super on with some food in from another colony. There is no need to shake the bees out if it is put on when the new colony is made up.