How do I merge the REALITY XP WX500 into the Ariane 737-800 cockpit panel in the navigation display?I need to change panel.cfg I don't know how please help.

Depends which version of the Ariane 737-800 you mean, there are two, the FSX version and the FS9 one. It also depends on whether you want it in the VC or as a 2D pop up panel.Al

Ariane 737-800 for FSX and I want it in the VC ND display like inside it , So that I can see my air routes as well as 2D weather radar inside it with buttons to config the WX500.