I'm working on large site with top-navigation menu for top-level pages only. Is there any way to make sub navigation menus work as on image attached? I hope the problem is in myinsufficient PHP-skills, not in limitations of Wordpress.
Top-level navigation menu is made with standard wp-nav-menu. This navigation bar is separate from subnavigation bars. The problem is in the first sub navigation bar (child pages of current top-level pages) and the second navigation bar (child pages of current child page)
First line should show all the sub-pages of current top-level page (if there is any), and second line should display sub-pages of current sub-page (if there is any). I'm trying to make it easy for updating and navigating the website, so, that sub navigation show location in the page hierarchy.
I tried all the wp_list_pages code examples from Codex, and tried to achieve the desired result with plugin "Custom Menu Wizard", but I couldn't make it work properly. Either only siblings are visible (no parent pages and their siblings) or the whole list of complex hierarchy (not relevant to current page). Is there any way to make this work, or should I use solutions like three-level drop downs?