Request: Please add coinbase.com to "Sign-in with" SSO list.

Coinbase has offered SSO for adjacent value-added services for several years now. (Example: summ.com used for tax filings related to crypto currency uses coinbase.com for SSO login). 

Please add this to the list. Its really clunky and frustrating that we’re still not able to effect this on our own. 

One would expect or hope that simply adding an SSO provider as a “related item” would be enough to have it appear in the ‘sign-in with’ list for that entry. 

Thank you.