whether passive or active (and the sclick for the tab ID should stop passive)
I get no errors
Code:
alias listme dialog -m listme listme

dialog listme {
  title "listme Box"
  size -1 -1 200 100
  option dbu
  tab "One", 1, 0 0 200 100
  tab "Two", 2
  list 100, 20 20 160 60, tab 1
  button "Add", 900, 30 75 60 10, tab 1
  button "Remove", 901, 110 75 60 10, tab 1
  list 101, 20 20 160 60, tab 2
  button "Add", 902, 30 75 60 10, tab 2
  button "Remove", 903, 110 75 60 10, tab 2
}
on *:dialog:listme:init:0:{
  did -b listme 901,903
}
on *:dialog:listme:sclick:1:{
  did -t listme 100 1
}
on *:dialog:listme:sclick:2:{
  did -t listme 101 1
}
on *:dialog:listme:sclick:900:{
  if ($cb(0)) { 
    did -a listme 100 $cb 
    did -e listme 901 
  }
}  
on *:dialog:listme:sclick:901:{
  did -d listme 100 $did(listme,100).sel
  if (!$did(listme,100).lines) { did -b listme 901 }
}

on *:dialog:listme:sclick:902:{
  if ($cb(0)) { 
    did -a listme 101 $cb 
    did -e listme 903 
  }
}  
on *:dialog:listme:sclick:903:{
  did -d listme 101 $did(listme,101).sel
  if (!$did(listme,101).lines) { did -b listme 903 }
}


renamed it all