Hello @audacity,
Thanks for updating in!
Again, self-replying or bumping a thread will make it push back into the queue. It would take us a little longer to reply.
Anyways;
1.) You will need to remove the Ethos dummy post articles because those articles were assigned as “featured Articles”. I already replied to your other thread about this issue.
2.) Do you have the example URL of the layout that you liked? By the way, the sidebar is using widgets. You can modify/remove/add a widget for your site sidebar if you go to Appearance > Widgets in your WordPress dashboard.
3.) The https://example.com/cornerstone is the landing page for the Cornerstone builder. This is also where you can. access the Theme Options. If you would like to change a layout of a page, you need to add a page/post first or edit the existing page/post which at the moment, it is only the “Join Us” and “Terms & Conditions” pages. Clicking the “+” icon button will allow you to create a new page or component.
Yes, I have mentioned that you can also create posts but at this moment, it is not allowed. You can simply go to Cornerstone > Settings > Permissions.
4.) Yes, you can. Please create a page first so that it will be displayed in the builder preview. Then go to the Globals tab and in the Ethos stack options, there is an option where you can select the color for your Navbar.
Since you are using the Ubermenu plugin, you will be able to modify or style the Ubermenu in Appearance > Ubermenu.
Best Regards.