Docusign IAM for CX

For various reasons we have to void envelopes and for various reasons we do not want the recipient to receive notification of the envelope being voided. The documentation says that a recipient who has not signed the document will not receive notification of the envelope being voided, however we have multiple customers who have not signed yet are getting notification of the voidingIs it possible to turn off these notifications

We have just signed up for an IAM for CX account. When we had a trial developer account I could add a dropdown to my template from the standard fields. Now that we have an IAM for CX account I don’t have as many options in the ‘Standard Fields’ section. Please can someone explain why or how I can get them?

How do I know if this is the right package for my organization?

What capabilities are included in Docusign IAM for CX?

As an existing Docusign customer, I'd like to know how IAM for CX works and how my company could benefit from it.