These options affect to member pages of the site. – Archive and Single page.
In here, porto manages the layout of the member page. You can build this page with Archive Builder easily. But in this case, some options should be not worked correctly. Some of this panel are removed in Soft Mode(Full Site Editing).
Control the layout of the Single member page. Porto also offers the Single builder. The page built with the builder doesn’t receive the some of theme options. because of that, some options are removed in Soft Mode(Full Site Editing)