This code is a whitelist. Special thanks to Shadows Blacklist for making the base of the script. Hope you enjoy! Note: UNTESTED

dialog Whitelist {
  Title "Knight Whitelist"
  size -1 -1 100 40
  option dbu
  button "Add",1, 5 7 25 15
  button "Delete",2, 35 7 25 15
  button "View List",3, 65 7 29 15
  button "Clear List",4, 28 25 40 10
}
on *:DIALOG:Whitelist:sclick:1:{
  /auser Whitelist $?="Enter a Nickname to be Added to Your Whitelist"
  if ($address($!,2) != $null) { /write Whitelist.txt $! - $address($!,2) | echo 4 -a $! with the address of $address($!,2) added to your Whitelist! }
  else { /write Whitelist.txt $! | echo 4 -a $! was added to your Whitelist (With NO Address) }
}
on *:DIALOG:Whitelist:sclick:2:{
  /ruser Whitelist $?="Enter a Nickname to be Deleted from Your Whitelist"
  /write -ds $+ $! Whitelist.txt | echo 4 -a $! Deleted from Your Whitelist 
}
on *:DIALOG:Whitelist:sclick:3:{
  /run Whitelist.txt
}
on *:DIALOG:Whitelist:sclick:4:{
  /remove Whitelist.txt
  /echo 2 -a The Whitelist.txt File has been Removed! Note that the "View List" button won't work unless you "Add" another user!!
}
alias bl {
  dialog -m Whitelist Whitelist
}
; below me, you see mode $chan +a $nick.  Edit the +a to whatever you want!
on Whitelist:JOIN:#:{ if ($me isop #) {mode $chan +a $nick
  cs sop $chan ADD $nick
  msg $chan 4,1 You have been added to 0,1 $nick 4,1 whitelist!
}
menu status,channel {
  Whitelist:/al
}