Hello Scotthan !
You can follow this support article to get to the Launcher’s configuration menu, which includes the ability to select the screen, the resolution to use and whether to use windowed mode.
In general you can get quick help from us by using the support widget on your operator panel’s bottom right corner 🙂 It will often even link you to support articles that may help you! We’re also available via support@springboardvr.com.