I doubt a diagram would be more clear than a simple verbal explanation for a simple concept.

For a Character to use any Key Map, it must be assigned to that Key Map (or a Character Set it is part of must be assigned). When you select a Character in ISBoxer, all of the Key Maps which are assigned to it appear in the lower left pane of ISBoxer. This is a central concept of ISBoxer, which is why it appears prominently.

Virtual Mapped Keys are placed on their own tab in the lower right pane because they are a less-used concept. This is the mechanism by which ISBoxer is able to replace one Key Map (Virtual Combat in this case) with another Key Map, on a per-character basis. That is why when you use the Pro System, you must also virtualise Virtual Combat using the same Key Map that has already been assigned to the Character. The Quick Setup Wizard will do this for you if you choose the appropriate configuration style.

Short version:

  • Character not assigned to Key Map -> Mapped Keys in that Key Map will not work for that Character, irrespective of any virtualisation
  • Key Map not virtualised from Virtual Combat -> Mapped Keys in that Key map will never be activated for that Character (their empty counterparts in Virtual Combat will be instead)