Open a project folder
Start by pointing the app at the folder that holds your shot files. It scans the names, lays out every shot it recognizes, and sets aside anything it doesn't. The folder you had open is reopened automatically the next time you launch, so you can pick up where you left off.
Open folder… — Opens a folder picker. Choosing a folder scans it and replaces whatever was on screen. If you have uncommitted changes, the app asks before switching so you don't lose them.