GameMaker batches draw commands by default, though the manual doesn't mention this at all. - Explain the basics of this under the Object Editor > Events > [Draw Events](manual.gamemaker.io/monthly/en/The_Asset_Editors/Object_Properties/Draw_Events.htm) page. - Add a page on batching and list the GM functions that break the batch. - Add a note to the page of all functions that break the batch, "This function breaks the draw batch. See this page for more info".