To delete unwanted panoramas from GoThru Moderator please follow the steps in this tutorial.
1. Go to GoThru Constellations, choose your tour from the list, and press the Tools button.
2. In the Tools screen, press Edit.
3. In the lower right corner of each panorama thumbnail, there’s a Delete button. Press it for each panorama you want to delete.
4. Back in the Moderator, you will now find only the panoramas you need.