Yes, you can add additional content sources at any point in time subject to restrictions mentioned above (agreement with 3rd parties & authorization/certification).\rWe have existing connectors to all major GDS, that can be "switched on" for you as you might need them. You will save a lot of time and effort by integrating with us. Even only one GDS may pay off as usually there will be no need to keep up with frequent format changes of GDSs or the requirement to integrate a new interface. The moment you add a second source and become multi GDS your savings even further materialize.