Navigation Modifiers

Is it not possible to use Modifiers on the nav tag? When I try to use a modifiers on the navigation is does nothing. I try to limit the navigation in order to put a logo in the middle of the navigation.

{{ nav include_home="true" limit="3" offset="3" }} {{ if show_in_menu }} <li{{ if children }} class="group"{{ /if }}> {{ menu_text }} {{ if children }}

{{ children }}
• {{ menu_text }}
{{ /children }}

{{ /if }} {{ /if }} {{ /nav }}