Use the sync / diff option to analyze media in your project folder and media that has been imported into your video editor. 

Find and sync media...

• In project folder but not imported
• in your video project not located in your project folder
• that needs to be deleted

Click the "SYNC/DIFF" button at the bottom right of the SuperBins window

Supported video editors

• Davinci Resolve Studio
• Premiere Pro

Sync / import any folder
Open the Sync/Diff screen.  Sync/Diff defaults to your current project media folder.  Try process a different folder, click the "set" button in the upper right.