Can Included Warranty Subscription Contracts be created manually?

Hello,

We have created an included warranty item and the automatic process of Included Warranty subscription contract creation post IB asset creation is working fine.

Using the same Included Warranty item, do we have a way to create a subscription contract manually from the application by first creating a subscription and manually add this Included warranty item as product? Asking this question because currently when we search for this item under the Add product screen for a subscription, it is finding the item.

Thanks

Vineeth