No. You can currently connect only one account per tool. Additionally, you can only connect one CRM per account (Pipedrive, Copper, Airtable or HubSpot CRM).
That said, it is possible to replace the existing account with a new one by navigating to account settings and clicking on “Reconnect”.
P.S. Before reconnecting, make sure you are logged in with the new account you want to connect in your web browser.