Prefill of phone number when using DS EU Advanced

We use the signature type DS EU Advanced on a daily basis since we require a double authentication from the signatory, both through email and phone number. The phone number needs to be entered manually even though our Docusign contact list contain their phone number. Prefill of the phone number within DS EU Advanced when the contact has a phone number listed in Docusign would save a lot of time on a daily basis.