I can copy names from address book to email blank, but not copies

[Scawsby]

-I open my address book. I hi-light a name and click on "Send email to."
The name appears in the "TO" line of the email. Fine. But starting a couple
of days ago, when I tried to go back to the address book to copy the email to
other people, I was barred from clicking on the address book.

I must have done something to cause this but how do I undo it?

 

[Russ Valentine [MVP-Outlook]]

Your description is very vague and doesn't even sound like Outlook.
Clarify it. Specify your Outlook version.
The address book is not intended as the interface for starting new messages.