The Hog 4 family of consoles all share a common set of useful multi-purpose modifier keys that when held down extend the base functionality of other keys and wheels on the front panel similar way to a Shift or Control key works on personal computers. There are several modifier keys but the core modifier keys in the Hog 4OS are Pig, Open, Delete, Backspace, Set, Cue and Move.
Pig Key Modifier Examples:
Pig + I-Wheel : Changes wheel to proportional intensity mode.
Pig + Move : Pastes information into the selected location.
Hog 4 OS Key Combinations has a full list of commands that use the Pig key.