Evolution and GPG groups

[Greg Woods]

I have a group declared in my gpg.conf file. I would like to be able to
send mail to this group and have it encrypted with each member of the
group's public key. I know Thunderbird can do this but I have not yet
figured out how to do it in Evolution despite a lot of Googling and
reading the Evolution help files. I have GPG encryption working for the
case where I am sending to one address where I have the public key on my
keyring; now I want to send to an alias and have it encrypt for each
member of the alias. Is there a way to set that up in Evolution? I am
talking about gpg.conf configurations like this:

group 0x55555555=0xXXXXXXXX
group 0x55555555=0xYYYYYYYY

etc. 

and I want to be able to send to an address, and have it encrypt with
both 0xXXXXXXXX and 0xYYYYYYYYYY. How do I map an address to GPG group
0x55555555?

--Greg