As a Notable feature you can add custom menu links to the admin bar. You can add admin bar menus from the WordPress default menu creation page.
To do this, go to Appearance -> Menus.
There you can see a new Menu location created inside the menu creation tab.
Then create a new menu by setting a menu name for example “Admin bar links” and select the location “Admin bar menus” and save.
Now you can create any number of menu links and add them to admin bar.
Note: Make sure you should not select other menu locations when creating the menu.