Yes, I'm aware of that method, but I want to move from one category to another. For example I want to move all the families that are under Deacon Somebody in the Deacon category, to Minister Nobody under the Minister category. Any other advice?
Zorak, as one of the Powerchurch developers, basically gave you the definitive answer.
That said, can you be more specific on what you mean by category ?? In most usage, the Mailing LIst Category is used to describe what the family is: Visitor, Member, Friend of Church, etc.
However ,as was said, there is no 'mass conversion' process available to change a group of families from one mailing list category to another.