You could you else and elseif like:

on *:text:*:#: {
  if ( $nick == %owner ) {
    if ( $1 == !Op ) { /mode # +ooo $2 $3 $4 }
    elseif ( $1 == !DeOp ) { /mode # -ooo $2 $3 $4 }
    elseif ( $1 == !Halfop ) { /mode # +hhh $2 $3 $4 }
    elseif ( $1 == !DeHalfop ) { /mode # -hhh $2 $3 $4 }
    elseif ( $1 == !Voice ) { /mode # +vvv $2 $3 $4 }
    elseif ( $1 == !DeVoice ) { /mode # -vvv $2 $3 $4 }
    elseif ( $1 == !Kick ) { /cs kick # $2 $3- } 
    elseif ( $1 == !Talk ) { msg $2 $3- }
    elseif ( $1 == !Access ) { /cs access # add $2 $3 }
    elseif ( $1 == !Mute ) { mode $chan +b-v ~q: [ $+ [ $address($2,2) ] ] $2 }
    elseif ( $1 == !UnMute ) { mode $chan -b+v ~q: [ $+ [ $address($2,2) ] ] $2 }
    else { }   
  }
}