Attatching Warraty to In-house Repair orders.

Dear expert,

Isn't it possible to attach warranty to In-house Repair order to provide free in-house repair service within customer warranty?

I noticed there are no input box to set warranty no. in in-house repair order, which exist in service order.

I am assuming that it is not possible like service contract is not integrated with In-house Repair process (source).

Thank you.