I don't know. It might be useful.

;Usage:
;/nick3 = sets your third nick (Optional)
;/mnick = switches to your main nick
;/anick = switches to your alternative name
;/3nick = switches to your third nick.

alias mnick { 
 if ($mnick == $me) echo -a I am already using my main nick!
 else nick $mnick 
 }

alias anick {
 if ($anick == $me) echo -a I am already using my second nick!
 else nick $anick
 }

alias nick3 { 
 if ($1 == $null) set %nick3 $$?="Third nickname:"
 else set %nick3 $1
 echo a Your third nick has been set to %nick3 $+ .
 }

alias 3nick { 
 if (%nick3 == $null) echo -a You need to choose a third nickname.
 if (%nick3 == $me) echo -a I am already using my third nick!
 else nick %nick3
 }