Supporting External Plugin For Woocommerce Auctions

In the capability settings, there is the “TYPES” setting which gives the following 4 options:
Simple
Variable
Grouped
External / Affiliate

However I have another TYPE that is not showing up here.

I use the WP plugin “Ultimate WooCommerce Auction Plugin” which allows me to run auctions on my Woocommerce site. The option is in the TYPES dropdown menu which is in each product edit page, however there is no option for it to be added for my sellers.

Is there an easy way to enable this extra product listing “TYPE” so that my vendors can run auctions also?

Thanks