Adobe Sign OAuth 'prompt' param

We are integrating with adobe sign using OAuth to access adobe sign apis. At the first we need get the access token through user's browser. One moment that could be a little bit annoying for our user is need to choose user account for login everytime, even user has already login adobe sign and has gave allow for specified scope. As I know, in OAuth usually this option could be contolled by option 'prompt' with setting value to 'none'. Has Adobe Sign anything for this?