Menumanager: One set children replacing previous set children

[webform]

I dont know if it's possible; To have a sub menu to show only one level of children. If i select a page in the sub menu and that page has children to replace first level of children (or parent i guees they would become) and so on down through all the levels/sub pages?

I have 2 menus

Code: Select all

{menu template='main_menu' collapse='1' number_of_levels='1'}

and

Code: Select all

{menu template='sub_menu' collapse='1' start_level='2' number_of_levels='1'}

Exsample:

Main menu:
Page 1
Page 2 * selected
Page 3
Page 4

Sub menu:
Page 2.1
Page 2.2
Page 2.3

So if i select page 2.2 in the sub menu and it has children, the sub menu will only show this new level and no longer page 2.1 - 2.3 - is that possible?

TIA

Finn