Does the Add-On “WordPress.com for Google Docs” allow you to add multiple WordPress sites?

After adding the Add-On and opening the extension, I see the button on the right side that reads, “Add WordPress Site”.

After clicking the button, it prompts me to log into a site. I enter my username for one of the sites, and an email is sent to me to log in.

When I log in, it opens to a blank WordPress dashboard and not the site I want to integrate with.

Am I doing something wrong? Can I add multiple sites?