Quote Originally Posted by SunShadow
Place the two FMs in the same spot (inside the same city or the same army)
Look at the FM with the ancillaries you want to transfer
Drag & drop the ancillaries to the other FM (I mean to the icon in the bar on the bottom of the screen)
Done!

I don't know if this can be done with all ancillaries; in M2TW it's possible only with some of them.
I've played RTW since it came out and I didn't know you could do that.

What else don't I know?