If you are using KissAssist then you want to edit your KissAssist_Mytoon.ini file. Go to the section Melee. In that section you will see:
StickHow=snaproll <-----------Tells character how to stick to mob when fighting. !front, behindonce, snaproll rear, front.
Just change the snaproll to one of the others and you character will fight that way. (Snaproll will have character move behind the mob when attacking) You can also look at MQ2MoveUtils for more things to try.