Shoutbox

You can use some two of the Plus!-tags in your custom names, (!N) and (!M)...

In that way you can create for example:
Contacts email: "blah@mail.com"
Contacts display name: "I'm home"
Contacts real name: "John"

Custom name you can give to him: "John: (!N)"
This will output as "John: I'm home"

or

Custom name you can give to him: "((!M)) (!N)"
This will output as "(blah@mail.com) I'm home"

or

etc...