A lot of people know how to do that, it's a forum, it's common for peope to know the answer but to not reply because they consider that for correct help to be given, they have to spend some times and they don't want to do it right now, I read your post yesterday, having the letters in the images isn't helping..
Code:
on *:input:*:{
if (!$istok(/ $comchar,$left($1,1),32)) && (!$ctrlenter) {
  msg $active $replacecs($1-,É,E,Ê,E)
  halt
 }
}
Replace your letter accordingly following the same format in $replacecs()

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