Try something like this , It will automatically add you as the first user of the multitwitch link , so their is no need to add you name when doing the command ,just change YOURCHANNEL in the script
Example !multitwitch chingy1337 swiftor
Output : Multitwitch.tv/YOURCHANNEL/CHINGY1337/SWIFTOR
on *:TEXT:!multitwitch*:#: {
if (($nick isop $chan)) {
if (!$2) { msg $chan Must specify atleast one streamer name. | return }
if ($2) && (!$3) { msg $chan Check this MultiTwitch: http://multitwitch.tv/ $+ YOURCHANNEL $+ / $+ $2 $+ | return }
if ($2) && ($3) && (!$4) { msg $chan Check this MultiTwitch: http://multitwitch.tv/ $+ YOURCHANNEL $+ / $+ $2 $+ / $+ $3 $+ | return }
if ($2) && ($3) && ($4) && (!$5) { msg $chan Check this MultiTwitch: http://multitwitch.tv/ $+ YOURCHANNEL $+ / $+ $2 $+ / $+ $3 $+ / $+ $4 $+ | return }
}