A computing system (200) and a method of generating data for enabling external control of a lighting system (100) comprising a plurality of light sources (101, 102) based on third party content are provided. The computing system is configured to receive a plurality of registrations of lighting systems and, for each of the registered lighting systems, information including indications of positions of at least some of the light sources of the lighting system, and to map the information onto a coordinate system. A coordinate-based representation is generated based on the mapping. Further, the computing system is configured to receive third party content from an external third party content provider (300), select at least one of the registered lighting systems, and generate data for controlling the selected lighting system. The generation of data is based on the coordinate-based representation related to the selected lighting system and the third party content.