title: How to share WP_POST for other child websites in wordpress
body: <p>I have a main website and 3 child websites using wordpress multisite feature. Currently I'm facing problem in sharing data between child sites and main site. The child site can't access wp_post table, it take data from its own post table. I tried broadcast plugin to share data. But that plugin copy post data from main site to child site. 
  My requirement is, the child and main website should use the main wp_post table to add posts, so that when a child site changes a post assigned to it from the main site, the change should affect in both child and main sites. The child website can access only the post allowed by super user (Network admin ). 
  Is it possible in wordpress? How can we change global $post in WP ? i am using woocommerce so i want list some products in particular child site
  How can we do that ?</p>