Level 3 Submenu

Hey,

I have this menu structure.

>Home
>Top
>>Sub3
>>>>Sub3.1
>>>>Sub3.2
>>>>Sub3.4
>>Sub4

I want to have a menu in the sites side bar that lists all the level 3 links and their parent.

Im trying to use this but it only shows level 2 links.
[!Wayfinder? &startId=`[[UltimateParent]]` &outerTpl=`menuContainer` &rowTpl=`menuRows` &level=`1` &excludeDocs=`16`!]

Any suggestions?

Thanks for any input

EDIT: If I change &level=`1` to &level=`2` it works but it shows all of the level 2 items not just the parent.
eg: it shows Sub3 and Sub4 plus the childs of sub3.
EDIT2: This thread has the solution but I dont understand it. Can someone show me what it all means? Thanks http://modxcms.com/forums/index.php/topic,32233.0.html

Im still struggling with this unfortunatley.

If I use &startId=`[*id*]` it works fine on the 2nd level pages but when you open a 3rd level page it doesnt show the 3rd level sibling pages.

If I use &startId=`[*parent*]` it works on the 3rd level pages but doesnt show their parent (the 2nd level page).

If I use &startId=`[[UltimateParent]]` it shows all 2nd level but no 3rd level when I am on a 2nd level page. When on a 3rd level page it shows the siblings but not the 2nd level parent.

Any comments are much appreciated.