Synchronization lost

Hello there!

On a website that used WPML, some pages in different languages were synchronized (when I updated the page in german, it was also updated in dutch).
I’ve used your plugin to switch a website from WPML to Polylang. After the switch, the synchronization link has been lost, meaning that updating a language no longer update the other one. My client needs to manually click your sync icon, but there is thousand of post types that were synchronized… Is there a way to automatically set your sync feature for the posts/pages that were sync with WPML? (I still have the WPML tables in my DB)

Kind regards,
Sunduck