Currently, the Meta key (for me it's the "Windows" key) toggles a screen that shows all my open windows and a search box.
That search box will find directories deeply nested in in /home/Documents and /home/Videos but it's skipping /home/Dropbox -- I looked at the Search settings and I don't see anyway to tell the system search to please also search Dropbox.
How do I tell it to search Dropbox?