Ok, this was posted years ago, and I knew how to get it done at the time, but now it's disappeared in the mists of time, and none of my searches can find the info.... There used to be a way to get mercs to stay in extended target by using their "real" name. I don't remember how to get this real name, so I'm looking for someone who remembers. For instance, if the merc is named "Fred", the real name is something like "Fred123456".
To be honest I've never tried this but using "current target" doesn't work? Target them and right click an empty space then current target should work I would think. Works on players and pets.
It does. But if you save that target set, the next time you load it, they don't appear. It only saves PCs, because, apparently, mercs and pets have a different "real" name, and it won't save them correctly unless you use that. So you have to manually set them every time.