i rolled a debonaire rogue, he's supposed to hit charmed enemies with bonus hit-to-crit. but how do i actually target the green circle charmed enemies?? you can't auto-attack them cuz the game says they are allies, even when i right click, the character just walks up to them thinking it's a move command. atm i have to expend guile for a special attack to actually hit them  :<

 

any idea?

There is an attack icon (looks like a sword) on the bar in the bottom middle of the screen. You can click on this and then select any character, friend or foe, to attack. People usually call it "force attacking". I don't know if there's another way to do it.