That is very helpful, thanks. I tried the method you linked and it didn't work for me, but I probably just did it incorrectly.You need to know the av id of the slaves or mercenaries.
For Juno that is av4 and you can cheat like this:
SugarCube.State.active.variables.npc.av4.age = 100
Or you can do this and then type: Juno.age = 100