Hello, I have tried your plugin a lot, and it is working great so far.
My request is : Why don't you *only* allow to assign built-in taxonomies to custom types, in the edit "Custom Post Type" screen ?
For now, Categories and Tags are the only objects allowed while it should be possible to allow to assign custom taxonomies.
I know we can do it in with "in Attach to Post Type" while editing a taxonomy.
It's just that some plugins need to check if custom taxonomies are attached to custom type with : $wp_post_types["mycustomposttype"]->taxonomies
The fix is easy :
//replace
if ( $add_tax->name != 'nav_menu' && $add_tax->_builtin == 1 ) {
//by
if ( $add_tax->name != 'nav_menu') {Thanks
