Create all missing variables at once

Is there a way to create them with one click… or one python script.
I copied BP logic to a new BP Actor and there are 10 grey variables.
At the moment i have to right click every variable to create it…

There’s no default way to do that. It’s undoubtably possible using an editor script, or a marketplace utility. I have seen them, they’re usually cheap, but I can’t find one right now…