Now, when your game is large with a lot of artistic resources, it may be that the way GameMaker Studio 2 automatically creates these pages is not the optimum for getting the most out of the target device, due to the fact that if a room in your game needs resources from 4 different texture pages, the device will have to swap these pages into and out of memory constantly, which may cause a loss in performance. To that end, you have the option to tell GameMaker Studio 2 what images are to be placed on any specific texture page by assigning them to specific
Texture Groups. The final aim of this is to minimise the number of swaps being done in a game at any one time texture pages can added from the
Texture Groups window .