I understand that the Base child theme is for developers to create new child themes, and that you recommend non-developers to use the Pagelines Customize Plug-in.
I am a non-developer, and I have the customize plug-in.
My current challenge is that I want the PostNav to only show posts that are within the same category, and for that I need to edit section.php inside the postnav section folder of pagelines.
Since I don't want to loose my edits with each of your next updates, I figured that installing the base child theme and copying my modified section.php file there was the best thing to do.
This is working, but creating another problem: the base child theme is now messing up my header by showing a brandnav menu with a link to all my pages (not posts).
How/where can I tweak this configuration? The base child theme should not impact / interfere at all with the header and navigation menu of the main theme.