This is an alias which allows you to select in which Channels your /ame text won't appear.

What do you need to change:
var %channels = #channel1 #channel2 - You type your selected channels that the /ame command won't appear, for example, it must be :
var %channels = #fun #games #music
etc.
Change Only This Thing! Not anything else..

Just type /sme and it will (99%) work.
It worked in my mIRC..

Notes:
Put this code in your Remotes section..
I Made the Variables for easier use of the code..

alias sme {
  if ($1 != $null) {
    var %x = 1
    var %allchannels = $comchan($me,0)
    var %channels = #channel1 #channel2
    while (%x <= %allchannels) {
      if (!$istok(%channels,$comchan($me,%x),32)) {
        describe $comchan($me,%x) $1-
      }
      inc %x
    }
  }
  else { echo $color(info) -a * /sme: No text To Send }
}