Persistent login on redirect

We have integrated with Constant Contact in our application, and to complete the integration our customers have to generate Access/Refresh tokens from their applications in the developer portal. However, the customer has multiple developer portal logins (and manages multiple newsletters) so when they create the first access token and log into the first CC account, they no longer get an option to log in for the subsequent token setups (so all of the Access/Refresh tokens are generated from within the same account)

Is there a programmatic way to force a logout initially when attempting to set up an Access/Refresh token?

This would allow our customer to set up each newsletters using the correct account