In this video tutorial, master of Affinity Photo, James Ritson, will show you how to utilise file groups in the Affinity Photo astrophotography stacker to process multiple observing sessions from Telescope Live. File groups is an important tool in the astrophotography stacker that allows you to better manage your files that are being used for integration, while Telescope Live data is expertly calibrated, James will also show you how to include calibration frames in the stacking process. James will also touch on post processing the output from the stacker, this will involve colour mapping and tone stretching.