path menu menutrails

Hi, there.

I've hit a snag. I have a 2 level menu structure and using the same menu for primary and secondary, like so

Item 1
-- Item A
-- Item B
Item 2
-- Item C
Item 3
-- Item D
-- Item E
Item 4

All menu items link to panel pages. What I want to do is when I click Item B, Drupal should still consider Item 1 as the active menu item.