Bag Unload button

[Tidwells@aol.com]

Prevost gave me the link to their manuals, but this still has me stumped: On my 1996 Prevost Royale by Monaco, there is a rocker switch on the row beneath the cruise control switches which says "Bag Unload" and has an X through those words. No diagrams in the manuals show this button.

Is this to empty my air bags? Or to unlock cargo bay to unload baggage? It doesn't currently seem to do anything. If it is to empty air bags, does pressing down on the bottom of the rocker switch where the words and the x are printed cause air bags to empty, or prevent air bags from emptying? Thanks for your help!
Doug