Setting API URL Endpoints in Drupal settings

Is it possible to set the TinCAN API URL endpoints permanently via settings.php instead of using the UI (admin/config/services/tincanapi) do so?
Can we set this permanently along the lines below in Drupal settings.php?

$conf['tincan_api'] = "https://<domainname.tld>/xAPI";

This would really help when having multiple Environments when having to maintain them seperately.