Thanks so much for the response. I am using a child theme, so I suppose I can go ahead with that and will certainly give it a shot… But now, on my staging site when I go back to the theme header/footer, I can’t seem to get back my fixed-width template, since I’ve added Nimble content. Even when I try to roll back the Nimble edits or delete Nimble sections, the site remains full-width. Is there no way to use Nimble and maintain a fixed-width layout, along with the theme template columns? I just don’t understand why changing the header/footer causes the rest of the site to lose its main content template.
