There is only one widget and that is the sidebar menu you see right now on this page.
The side bar menu widget will show up under your available widgets as “Boot Strap Menu.” It is also using the wp_bootstrap_navwalker class. The only difference is that the menu_class is defaulted to “nav-stacked” and we are generating the menu code as opposed to it being part of the template by default. However you could easily drop any of the menu functions into a sidebar to achieve this same effect.
The file for this widget is located in “/DevDmBootstrap3/lib/bootstrap-custom-menu-widget.php.”