How to integrate Zoho sign with Zoho CRM

How to integrate Zoho sign with Zoho CRM

Hi,

I am starting to use Zoho sign for CRM inventory template signature collection.

is there any way to fetch CRM inventory template and auto send to specific mailbox by using Zoho Sign API(or other)?
I know we can click "Send with Zoho sign", but we already filled the client mailbox when create SO, and we don't want to make duplicate action to fill in again. One click and confirm to send will be prefect.

I cannot find any related function in zoho flow and in API document.

Many thanks.