Hello

Yes something like this would do it - Just change my nickname, your nickname and Nick to the nicknames you want to auto voice on join.

User who is giving voice needs to be opped.

Code:
 

on @*:join:#: {
  if ($nick == JayStew) || ($nick == LCX) || ($nick == Nick) {
    .mode $chan +v $nick  }
}


Just add another
Code:
 || ($nick == NICKNAME)
to the end of the line (before the {

Also if a total stranger enters the room with one of the nicks above they would be voiced even if it isn't that person, You could also use something to voice by the users host rather than nick maybe? Depends what your prefer

Regards

JayStew