I reassigned the character selection hotkeys to 1/2/3 and select all to the ` key (beside the 1 key), so they would all be together and to free up the function keys (for spell and potion hotkeys). My hero archer was set to aggressive, so if I wanted to have my DK and hero attack different targets, I would usually just select the DK to control and let the hero attack whatever was closest. Occasionally, for tough fights, I would switch characters as required to manage targets more precisely.
