There are two ways to dismantle your grop ...
Either there is button under their portaits, or you can set keybind on "toggle group mode" ...
If you only want to separate single person from your group, simply "catch" his portrait by left mouse and drag it anywhere away from the group, once you see the chain snap ... they are ungrouped.
Alternative approach is clicking on their portrait by right mouse button and pick option "ungroup"
As far as i know there arent any option to lay traps in game ...
Nor any formations.
Hope that helps.
I still dont understand why cant we change Race for our hirelings.
Lets us play Githyanki as racist as they trully are!
