Because TryNow orders process through your ecommerce platform just like your standard Online Orders, no changes are required to how you track TryNow orders.
TryNow orders count towards your Online Store conversion in your ecommerce platform.
TryNow orders are included in your overall ecommerce conversion in Google Analytics.
If a shopper converts from a paid ad, the revenue attributed to the ad will be the value of the order, just like standard Online Store orders.