I have struggled for a while to get a consistent 'all off' button to work and an 'all on' and also to lit appropriately.  I have a KPL in the bedroom and near the garage entry door.  In the bedroom, I wanted to be able to turn all the lights off in the house when we go to bed, or turn on all lights when needed in an emergency.  I also wanted the KPL to tell me there is a light on somewhere both in the bedroom and at the garage door. 
To make all this work, I have 2 scenes: 
-All On 
   Bedroom light - responder 
   Kitchen light - responder 
   Garage entry light - responder 
   Bedroom KPL-C - controller 
   Bedroom KPL-D - controller 
   Garage KPL-C - controller 
  
-Any Light On 
   Bedroom KPL-C - responder 
   Garage KPL-C - responder 
  
The KPL-C are my 'all off' switches.  The KPL-D is the 'all on/panic' switch.  Initially, I had all kinds of trouble keeping them sync'd.  The trick was to confige the KPL-D as non-toggle/On and the KPL-C buttons as non-toggle/Off.  This way, the KPL-C buttons can only send a 'Off' command. 
  
The second scene is for notification if a light is on.  I have a 2 programs running: 
"Any light on program" 
If 
        Status  'Kitchen UnderLight' is not Off 
     Or Status  'Master Bedroom Light' is not Off 
     Or Status  'Garage_entry_light_KPL' is not Off 
Then 
        $light_any_on  = 1 
Else 
        $light_any_on  = 0  
  
"light up KPL-C" 
If 
        $light_any_on is 1 
Then 
        Set Scene 'Keypad scenes / Any Light on' On 
Else 
        Set Scene 'Keypad scenes / Any Light on' Off  
So, if any of the Insteon lights is on in the house, then it turns the KPL-C buttons On and the LEDs are lit. 
  
Hope this helps!!!