Select Project 12

Selects the twelfth project that is open. Not particularly useful. Probably a bad idea to have that many projects open. Maybe this is a holdover from trying to do live performance of sets of songs? How do you order or rank them?

Open Logic Pro projects — Apple Support

You can open an existing project to continue working. You can also open several projects simultaneously, allowing you to copy or move data between them, or to compare different versions of a project.

Just say no.