To delete an item from the Project Library, left-click on it, then look at the line of three icons just below the window's title (refer to the first screenshot of the previous section). The little x icon is no longer grayed out. Click on it and a Delete Item mini dialog box gives us one last chance to repent. Click on OK to really delete the file, or Cancel if it gets a last minute reprieve.

Warning: There is no recycle bin. Once you've deleted an item, it's gone. Of course, this is where all of us here have regularly backed up our projects and can always copy an item we've mistakenly killed back into the current project.