Open the panel.cfg with Windows Notepad and add the following:

In [Window Titles] section, add Window02=GPS at the end. Like this:

[Window Titles]
Window00=Main
Window01=Simicons
Window02=GPS

Then between the [Window01] and [VCockpit01] entries, add this:

[Window02]
background_color=0,0,0
size_mm=456,378
position=0
visible=0
ident=GPS_PANEL
gauge00=fs9gps!gps_500, 0,0,456,378

And that gives you the default MSFS GPS for the B-52. ;)