The reality product includes an installer which provides a button on
the main screen which you can use to pop up the Garmin screen. If you
want to make it look like the Garmin is installed on your 2D or virtual
cockpit, you have to edit the panel config file yourself or use one of
the templates that other users have created.

I think the simiple pop up method should work for 99% of add-ons. It
is very easy to apply.

I added the GPS to an Archer from Flight1 and a CJ1 from Eaglesoft
without any problem (including the panel modifications).

-Jim