OK, so I'm not sure what was lost along the way or to whom the reply was given, since I am a professional academic and my parents have long been dead.
Let me try once more, as simply as possible, to find out how to do something that ought to be intuitively simple: A group exists with email addresses, one email address for each recipient. One of the group asks to have their home email used instead of
the work email that currently is listed in the group. The contact for that person has both work and home emails listed. How do you edit the group contact so that you can change that one email address?
Other than the opaqueness of the group contacts, Outlook.com works very well.
[As for Gmail; talk about unintuitive and unusable: Gmail is the worst email service that I have ever used. Outlook.com works so much easier and cleaner, better to look at, and has features like the Documents folder and the Shipping Updates. Plus it
connects directly to SkyDrive. And, best of all, you don't have to deal with the most obnoxious of the cyber companies, the company that collected private data on all our homes all over the world without telling us, the company that scans your emails to sell
information for advertising, that omnipotent ad machine called Google.]