Zen Menu Logic

This plugin only works under the following conditions: 1. the theme has registered at least one menu location 2. user has created at least one custom menu with one or more menu items. 3. user has selected which menu location the plugin should work on in the Settings -> Zen Menu Logic options page 4. This plugin currently does not support a website that uses a plugin to change the language of the site to something other than English. This might change in the future. 5. Oftentimes themes have their own code that effects how menus work, specially when it comes to mobile. Therefore, this plugin may not work with your theme.

If those 3 conditions are met, then the edit page for every page and post and custom post type will contain a meta box listing the custom menus with radio buttons. All you need do is select which custom menu should display when that page is called.