How do I switch on the GTN 650 from COM to NAV frequency?

[tinelin]

In real life I push the lower right button to switch between COM and NAV frequencies but it does not work here. I don't use an integrated GTN 650 but separate on a separte screen.

[adminOwner2]

Hello, the change over from COM to NAV should work well in the GTN650Xi. Can you try using the middle mouse button over the clickspot?