Hi Xavier Menda,
In order to achieve this, you will want to uncheck the option "Allow this add-on to obtain an access token using authenticated session" within Advanced settings under Jive daily settings.
After that, you can set the access and refresh tokens independently. If you want the Access token to expire within a certain amount of time, you will need to be sure that Refresh token is set up to any lower value than Access token.
Please refer to Jive Daily Add-on Steps in Jive-n for more information.