Have custom “Order status email” statuses listed

Hi,
I’m using the “Custom Order Status Manager for WooCommerce” plugin to edit the or list of statuses for my site. I’m running a rental site, so the shipping of an article does not “complete” the order.

I would therefore like to select the extra statuses I entered in “Custom Order Status Manager for WooCommerce” in your plugins “Order status email” field for woo commerce emails.

How could I do this ? the entries will not change often so I could hard code them if needed.
Thanks