Quick STW question...

[Graiskye]

Thanks Brandy. I guess I just firgured it would be the same as combining the troops(on the strategy map), wherein you pick up one 'game-piece' and place it over the corresponding '-piece', when they turn slightly transparent/fuzzy(?) you can release the original piece and the troops will join, ala RTW and others.
So I guess I just figured the same would hold true for Castles but I could never get it too work.
Alas, life goes on, lol.
Peace.