Question about gnsx30 plugin

Guys, I'm using this plugin http://forums.x-plan...ettingNewSkin=3 in XPX, works quite well.I would like to be able to bind the "show" / "hide" to a toggle switch or something in XPX. You can go into the plugin menu in XPX, and under this plugin, there's the options to "hide" / "show" the gps. The plugin must be triggering / assigning something in XPX, a dataref (?), so, how does one go about finding out what is triggering this to hide / show, and then allow it to be assigned to buttons, keystrokes, whatever you like. Maybe button2dataref, is anyone familiar with datarefs? If I can click with my mouse to hide or show the gps, there must be something that is assignable in the joystick configuration area. Thanks for any help.Glen