In a Blueprint function, right clicking on an input node gives to option to promote it to a parameter, adding a pin in the inputs and connecting the wires automatically.
You’re talking about Shader Editor not about Blueprints right?
Sorry for the lack of clarity, but I am referring to Blueprints.
Hmm. I’m only aware about Shader Parameters. Blueprints have Variables. An You already can promote to Variables.
Yes, to variables or local variables, if you are in a function. Like local variables, you have parameters instead of a function, so it would add an input node into the function for later.