Well, now that was easy. (Had to download 25 GB of data, but it launched the OB afterwards with all of my settings intact).
Also, I had to delete the Civil Aircraft Mod.
What a great utility though. I got tired of waiting for all of the campaign/training bugs to be fixed on stable, so I'll see how the OB works. So far it seems great. I'm not using VR at the moment though, but TrackIR seems smooth, and a quick Instant Action test flight on Persian Gulf with the Mirage runs smooth at my capped 98 FPS.