So I am in the process of customizing the stemapp in the Web Appbuilder. What happens when there is a WAB update? Do I have to do it all again?
I am documenting the process, but would really rather not make all of these changes again.
Unless you add your WAB to some version control like GitHub or something, then yes you would need to redo them each release. I don't have not added WAB to any source control yet but I have seen some threads on this previously.