[Hustle] Hustle form on multisite

Dear all,

I have installed and set-up a hustle form on a website I manage.
It's on a multisite network.

This form hab been created on the top-domain. Now, I'd like to use it on subdomains.

In Hustle, I may re-create it in the wp-admin area of the sub-domains, but then each time I modify it I have to do it twice.

Do you know how I may use the form on other websites within the same network ?