Saving and/or Using Choices in Multiple Programs

bug in docs: "Restoring Automatic Backups" refers to a file in ~/Library/Application Support/B* , but this does not exist on my system.

I need to learn how to take all my saved choices (touchbar, key assignments) for one program (Emacs) and import it into another program (iTerm2). I figured saving it and renaming it could do this job, but maybe there is also another way to do this.