At the moment it's possible to connect one account per app but we're working on adding multiple account support per app. Reach out to support if you are interested.
💡 If you'd like to replace the existing account with a new one navigate to Apps page and click on “Reconnect". By doing that, all data syncs to the old account will stop.
Before reconnecting, make sure you are logged in with the new account you want to connect in your web browser.