Transforming a strip into subdevices

[Xirano56]

So, I had changed from signal rgb long ago because my lights wouldn’t work how I wanted. Now I have 2 rgb strip lights from govee (H618A and E) and am looking to change every led to a specific part of the screen, not how the app gives me, in a straight line, by making subdevices, I found something simillar on this Topic that made me do a plugin, but it doesn’t work.