You can customize how our desktop software will launch manually added content as well as titles not on our one-click system by either specifying a Universal Resource Indicator or a file path.
A Universal Resource Indicator is for applications like Steam where you can provide a unique URL that will trigger the game to launch. URIs are a browser protocol and not all apps support them, but Steam does. For a Steam title it would look like this: "steam://launch/343730/vr" where that number is the Steam app ID.
Path-based launch lets you specify the exact file path to the content you wish to launch. This allows you to select the path on your computer to the .exe file you want to launch.
If you wish to use Launch Arguments for a title you will need to have the Path-based option selected in the Launch Settings tab for the title in "My Library".
Titles on our one-click system currently do not support the use of Launch Arguments.