Hi @arashfth,
Thanks for reaching out to us.
You can get the Supervisor Add-On directly from your site back end, in: Dashboard -> WooCommerce -> Subaccounts -> Add-Ons.
Please notice that currently the Supervisor Add-On installs on top of Subaccounts Pro (which means that you have to get both of the components in order to get the Supervisor Add-On to work).
However we are planning to release the Supervisor Add-On as a standalone component in future.
If you have any further questions please let us know.
We haven’t heard from you in a while so I’m going to go ahead and mark this thread as resolved.
Should you have any other questions about the plugin, please start a new thread.