We can change which customer contact an estimate gets emailed to. Some things nice would be the ability to have the %CustomerName% place holder be the contact name on the email templates. Example: 'm emailing "X Company". The main primary contact for X Company is "Jan Doe". I want to send an estimate for x company to secondary contact "John Doe".

To make "John" so on the estimate email template, the text has to be manually changed. (Unless overlooking the needed place holder to make this happen.)