This paper demonstrates EDICT, a simulation tool for performance metrics datasets in IoT environments. Such environments are represented using the NGSI-LD data model. EDICT uses NGSI-LD instances and Open Queueing Networks for the composition of a concrete QoS model that is then simulated to generate a performance metrics dataset. This dataset captures performance metrics of Edge interactions such as response time and throughput. We demonstrate the utility of EDICT by showing how a perfomance metrics dataset can be generated for a specific IoT environment.