Sidebar Dialog not showing up on new post page

Hi chrisgascoignee, this plugin only allows you to create sidebars for pages, however, you can add support for posts by adding the following snippet to your theme’s functions.php file:

function chrisgascoignee_init() {
    add_post_type_support( 'post', 'simple-page-sidebars' );
}
add_action( 'init', 'chrisgascoignee_init' );

My theme apparently won’t accommodate this plugin (Infinite-Pro). There is also no area for sidebar options below the normal page editor. Would using the above php code and replacing ‘post’ with ‘page’ work?

Thanks,