Nice write up. Good explanation.
I did recommend using the photo mapper because according to his doc above, it’s not just three rows of 144. But that’s a good start.
We have a lot of people who don’t understand how the mapper works, and worse, expect to see their current pattern on the mapper display instead of the rainbow runthru it displays. Maybe @wizard can clarify the UI a bit, to avoid people thinking this?
I haven’t had a chance to simplify the multimapper yet, but will try to get to it in the next day or so. Right now, the example code does a lot. The “simple version” will do a bare minimum:
Define two submaps - one is a basic math limit like x<.5 and y<.5 (so one quarter of the map) and the other is a circle-y spot. And it defines just two patterns to display, one is trivial like a blink, the other is blink with some x/y influence. So it’ll be pretty clear how it works, I hope.
[edit - now added, code in pattern library, and also here]