This tutorial will show you how to extract specific effects that you have no clue where there are or to put every effect in only one bin to make it easier to edit them later.

Tutorials
Using matrix to edit particles
Tutorial about how to use transformation matrices in particles uwu

2D-Editing
How to assign multiple custom textures to materials
How to assign materials to custom textures

Creation Tips
Creating separated icons to a skin
If you want to make an icon / square of a skin be different than the default, without changing the default icon.