Applying unmanned aerial vehicles (UAV) has benefits for many different use-cases. Existing implementations of ground control stations (GCS) to manage UAV in such scenarios already provide some support for the operation of multi-unit systems, i.e., ensembles. However, since they are usually designed for the operation of only one copter at once, this is often not sufficient to react quickly in dangerous situations, e.g., search and rescue scenarios. To come by this problem, we propose an approach for easily observing and controlling complete autonomous UAV ensembles: We intend our approach to greatly reduce the number of personnel required for the operation of an UAV ensemble. Thereby, we generate the possibility for rapid intervention in potentially dangerous situations in order to prevent damage to the UAVs and the environment. This is a very important requirement in many applications of such ensembles, e.g., when rescue forces want to use them for achieving a faster reaction major catastrophe situations like we suppose in our research project COMBO*. Our approach integrates the control, selection, and identification of single or multiple UAV in ensembles. In this paper, we present a software architecture for this safety-critical multi UAV ground control station including a fully implemented prototype which we also proved in a realistic environment.