My project runs on Drupal 6, and I'm using Views.
I have a main menu with two submenus (menu -> sub1 -> sub2).
This image shows what it looks like on my "edit panel."
The box with an orange border is the second submenu, and the one with a black border contains the item content assigned to this second submenu.
All the items from all submenus assigned to first submenu (main menu -> sub1 -> sub2.1, sub2.2, sub2.3 ...) are showing up already in the first submenu. (Th first submenu is a drop-down in the main menu; I don't want to have all submenus in the main menu, but just the first one.)
I want to hide them from there and display only the item that belongs to ie. sub2.1 or sub2.3. When I click sub1, I see all items from all sub2; when I click sub2.1, I see the correct items assigned to this submenu.