Software question

So basically I have a setup of 2 ws2811 strips, a ws2812b 8×32 led matrix, a esp32 and other things that are needed for a good setup.
My question is, I have installed the latest soundreactive install and I would like to know how can I incorporate the matrix and the strips, I have seen online that some people setup the matrix first and then setup the strips, and wled will automatically assume that anything past the matrix on terms of LEDs is supposed to be treated as a strip.
But I think that on my version that is not possible because it doesn’t allow me to add any other gpio inputs because the number of LEDs won’t match the total of the matrix.
I don’t if this is a question of being a newer version or if this is just restricted to non soundreactive versions.

@Edusc01 Welcome
use different outputs and a LEVELSHIFTER
every output makes its own config inside WLED so no problem on that you will get to this very fast HAVE fun