Is it possible to use pages created on the main site in other sitesâ menus?
For example it would be excellent if all pages from the main site not only appear in the Custom menu section (Appearance > Menus) of the main site but also on all other sites’ menu sections when pages are searched.
You can use a static link in the WP Nav menu. Is this not enough, then it is possible to create the post inside the multisite install with the function
wp_insert_post(). But this create all post in all sites in the network. It give also plugins for this to copy the page in other sites, like Mulitpost MU (http://plugins.svn.wordpress.org/multipost-mu/).