How do I delete or archive a project?

From the project library, select one or more projects using their checkboxes. A toolbar appears with:

• Add to tag puts one of your tags on the selected projects, so you can find them again from the library filters — see How do I organize my library with tags?
• Archive moves the projects out of your default view. Show archived projects with the library filters, and unarchive them at any time.
• Delete removes the projects and their generations from your library. A confirmation dialog opens first, because deletion cannot be undone — archive instead if you might need the project later.