A classic wildcard will do the filtering job laugh
Code:
raw 352:[color:blue]& ? *[/color]: {
  if !$window(@Users_not_in_channels) {
    window -nk0 @Users_not_in_channels
  } 
  aline @Users_not_in_channels $2 $6 $7 $3 $+ $4 : $+ $8- 
  haltdef
}