Add a button to a creature to create henchmen

For GMs, managing henchmen can be difficult as the GM has to remember to roll an additional white per additional henchman in a group. A creature window could have a check box to render it "henchmen" with a number next to it that can be changed by the GM. That number would determine the number of white die to add to a roll by this creature. When this creature take wounds, and a henchman is destroyed, the GM can lower that number of one.