Virtual Mapped Key
From ISBoxer
A Virtual Mapped Key causes a given Mapped Key to be used in place of another in certain circumstances. This is similar in concept to Virtual Files, which direct the game to a given file instead of the original.
Virtualization is applied only when the original Mapped Key is executed via a Click Bar or Do Mapped Key Action. This means that the original Mapped Key can still be executed via its Hotkey (if one is configured).