Thank you for visiting my discussion, Leonid. I am close to the answer, I believe.

At present, I have no (0) options in my "View Post submenu" When I try to add a new item, the list is too long. Do you know which one to select in order to have "breadcrumbs" appear at the top of the Posts pages? What do I choose to enable? 

This neat feature enable a user to bypass the 2 step (click) hamburger menu and speeds up the site experience.

I notice in the html for the Discussions Template there is: <div class="bx-base-general-breadcrumb">. ???  I need those bread-crumbs!