I've been going crazy trying to find this. In the Perspective Session Launch tab on the GW webpage it lists the available projects with a Title and Subtitle (and in the Designer Launcher it just shows the Title). But I can't find where these values are defined in the Project. I expected to see them in the Project Properties when editing the project, but I can't see them anywhere.
This is for project that I originally created in 8.1 (and I know that I entered the Title and Subtitle values then), but I just upgraded my GW to 8.3.7