Top Level Widgets are widgets attached to top level menu items. And like top level menu items, they are ALWAYS visible. If you want a widget in a submenu, attach it to a second level menu item
Note that by default, top-level widgets are deactivated. To activate top-level widgets:
- Navigate to Appearance > UberMenu
- Expand Descriptions, Shortcodes, Widgets and activate Allow Top-Level Widgets
- Save Options
Once you have top-level widgets activated, you’ll be able to use widgets in top level menu items as described above.