If your menu is set up like
<ul>
<li>Menu Item 1</li>
<li>Menu Item 2</li>
<ul>
<li>Sub Item 1</li>
<li>Sub Item 2</li>
<ul>
<li>Menu Item 3</li>
Then you can always use content holder.
The problem on this case is you cannot have a onActive CSS class, unless you do some more javascript on which you could have bypassed by using dynamic menu