If you create a Custom Menu, you can make a non-clickable item by following the steps shown here:
http://wordpress.mcdspot.com/2011/07/26/non-clickable-item-in-a-wp-custom-menu/
Thanks Bro,
That workaround will add an item with a null link, but still clickable. What I would like to do as an example is to be able to add a <H2> or <Span> element. I think i will have to use walker for that…