I simply want a second menu in my sidebar to show on all pages. My theme only supports one custom menu though. I am using the first custom menu for the top level nav, and I wanted my 2nd custom menu in the sidebar. I created a second menu and tried adding it using the custom menu widget, however this just adds my first menu, I'm guessing because the theme only supports one menu.
Search for the code give here in your themes
functions.php file. and register second nave menu as show here.
register_nav_menus( array( 'primary-nav' => "Primary Menu", // file may have this with different name 'sidebar-nav' => "Sidebar Menu" //add this line ) );
Use custom menu widget to show it up in sidebar. OR If you want to edit the theme template, then put following code where you want the second menu to appear put follwoing code
<?php wp_nav_menu( array( 'theme_location' => 'sidebar-nav' ) ); ?>
Now you can got to
Menu Appearance Screen to assign items to it.