Hi @lazybraingames, you could try creating a script (.sh or .bat file) and using the Command Line Interface (CLI) for that, e.g.:
aseprite.exe -b sprite.aseprite -save-as "sprite-{group}.png"
There are more information in the documentation about all the options available: Aseprite - Docs - Cli (remember to check the platform details to know how to invoce Aseprite).