Adjusting multiple parameters in and out of the shader editor in Blender! I can't believe I haven't come across this yet cause it seems so useful for so many things.
So yeah, we're basically making a custom property slider, and whatever we do to that slider it's going to do the same thing to separate objects in and out of the shader editor. Crazy! This is going to be so useful for me!
Thanks again to liora who commented on my stage lights video. This was a cool thing to learn.