Thanks for your review. Bugs and Feature Requests can be reported at https://github.com/sneakypete81/updatescanner/issues

The "greyed out" option may be because you're using a Mac. I'd like to fix this, but don't have access to a Mac for testing. If you'd like to help test the fix, please create an issue from the link above.

You can click the "Scan" button in the sidebar to manually scan all pages at once.

I'll fix the help link for the next release.