import project to iMovie

I dragged a project out of iMovie to the desktop, but can not figure out how to import it back to the iMovie event or project.

After I dragged it from iMovie, I deleted the project from iMovie but now want to import it back into iMovie.

The desktop icon ends with ".rcproject".

When I open the desktop icon, it shows Project, Proxies, & QuickLook.

When I open iMovie and try to import the project, it shows on the desktop but is dimmed.