> Since JOYSTICK_DOWN is in IN1, separate from the other three in IN2, I can't fully > animate the upright 8-way stick? (Though I could still do the cocktail version?).
It can be done with Lua script, but not without. Remind me to show you how to do this one after MAME 0.227 is released (layout scripting is going to change substantially for MAME 0.227).