How do I move an app back from my external drive to my Mac?
Short answer: Open Apps → Moved and click Move back. Storage Studio copies the app back to its original folder, removes the shortcut, and cleans up the fast-drive copy. The drive must be connected.
Open the Apps window, go to the Moved tab, and click Move back on the app. Storage Studio copies it back to the exact folder it came from, removes the shortcut, and reinstates it so Spotlight, the Dock and Launchpad find it immediately. The copy on your fast drive is then removed.
Your fast drive must be connected, and your Mac needs enough free space for the app. Quit the app first if it's open.