This snippet for the User Access Manager Broadcast add-on disables the add-on from working on specific blogs.
Add or remove blog IDs as necessary.
function bc_broadcast_user_access_mananger_apply_on_this_blog( $apply )
{
if ( in_array( get_current_blog_id(), [
3,
4,
5,
] )
return false;
return $apply;
}
add_filter( 'broadcast_user_access_mananger_apply_on_this_blog', 'bc_broadcast_user_access_mananger_apply_on_this_blog' );