Client lock concept for MaRs...

clientLockPass = password // Change "password" to the password you desire.
tmpCP = ""

newmenu "Client Locked"
menuitemtextinput "Password: " [] [if (strcmp $arg1 $clientLockPass) [tmpCP = $arg1; add2alias mapstartonce [closemenu "Client Locked"]; tdm ac_complex]]

spamClientLock = [
  if (! (strcmp $clientLockPass $tmpCP)) [
    showmenu "Client Locked"
  ]
  sleep 0 spamClientLock
]

add2alias mapstartonce spamClientLock