Is there an option to customize the email subject and instruction text to include for an Agency as a specified recipient via the API...

Hello,

Is there an option to customize the email subject and instruction text to include for an Agency as a specified recipient via the API.

Something like below:

"Please fill in your details if you are the signatory for this contract. If you are not, please add the recipient's details who should be signing.
Note: If you close this dialogue box without entering any details, you will need to reopen the email to add the assignee's information."

Thanks,
Swami