In the developer tools experimental features for blender 2.9, there is a box that says "New Particle System". When I check it, it allows me to access the "Simulation Editor", which seems to be a type of particle nodes. I have looked online for information about this, but I have not found any. Can anyone explain how to use this "Simulation Editor" or tell me where I can find more out about it?
To clarify: this is NOT the functions branch, this is just developer tools for Blender 2.9.