Well, that feature "Copy Email Address" is almost as good, with the message and address-book in separate windows. No more help wanted.

If you are talking about an address in a received mail the easy way to do it is to click the star to the right of the senders email as it displays in the Message Pane or Tab header. If the sender is not in one of your address books the star is not filled with color. Clicking the empty star will add it to the default Personal Address Book and fill the star with color. Clicking a filled star will open the contact edit dialog box and there is a drop down list of address books so you can move it.

This is NOT the same star that shows to the left of a message header in the Inbox window.

You can also drag and drop contacts between address books easily.

I do not want to add anything to "Personal Address Book" (what a cumbersome name!—and I cannot change it). I have filled it with e-mail addresses that fit none of my categories. I find that "Copy Email Address" best serves my purposes, and then I do not have to use a mouse-operation (drag-and-drop).

Thanks for your time.