I have added option fields in my theme's Customizer that allow you to change how your 404 page looks. Problem is, the user can't actively see the changes.
I have a specific section for my fields, called "404 Error Page". Can I put some text directly below it? Maybe something like:
Click here to test the error page.
here link somehow opens an error page in the Customizer preview.
Or perhaps there's some kind of hook that can be used to automatically navigate to a non-existent URL when the error page section is opened?
Can I achieve any of that?