Something

  if ($1 == .add) || ($1 == .del) || ($1 == .list) {
    cs access $chan $remove($1,.) $2-
  }
  if ($1 == .add) && ($$3 isnum) {
    $iif($3 > 2,    mode $chan $iif($3 == 3,+v-oha)  $iif($3 == 4,+h-voa) $iif($3 isnum 5-9,+o-hva) $iif($3 > 9,+ao-hv) $str($2 $+ $chr(32),5))
  }
  if ($1 == .del) && ($2 ison $chan) {
    mode # -aohv $2 $2 $2 $2
  }
  if ($left($1,1) == +) || ($left($1,1) == -) {
    $iif($remove($1,-,+) isalpha,mode $chan $eval($1-,2)