Multiple Identities

[T. Howell-Cintron]

I'm roughly familiar with GnuPG and have used it in the past when I had 
a single presence, a single e-mail address, etc.

I'm in a position now where I'm using multiple e-mail addresses, for 
different purposes, but want to share the same key for the sake of 
simplicity in my applications (Enigmail for example).  I know it's 
possible to use one key for multiple e-mail addresses/identities but I'm 
not sure how to go about doing it.

Any tips would be appreciated.

Thanks,
Tom Howell-Cintron