I have an off canvas sidebar that currently has completely different options than the header. However, I want to have a different sidebar for each page- for example, the sidebar for about.html would...

How can I make different header for different pages?

https://imgur.com/a/ZTerCgp How can I troubleshoot this? I understand that for now I need to use the desktop app and export the theme only without content not to break anything on the production...

I noticed that now, since update, when I edit a page that was created before, settings go by default to the page option without header and footer (nice page header and Footer). I think this is not...