Supporting Keypad Linc detached loads.

[majortom64]

Starting with version 41 of the KeypadLinc firmware, the KPL supports detaching the load from button 1 (8-button version) or the on off buttons (6-button version). This makes it so if one has a room with multiple controlled lights and multiple entrances, one can have the same buttons on each KeypadLinc control the same lights. From what I can tell, the current version of the KPL linking code in MisterHouse does not support group 9 (and I am not sure it supports links from the KPL to itself - needed to link a button to group 9).

I have a number of places where I would like to do this, and I expect that if it was easy for users, it would be used a great deal.

Here is the information I have found on how it works (not a programmer, but found it in the developer docs):

http://cache.insteon.com/developer/2...-042013-en.pdf
Detach Load Notes:

• Detach Load is only supported through software. It cannot be turned on/off from the device.
• When Detach Load is turned On, the load will then be moved/controlled by Group 9
  o Link to Group 9 using the SET Button.
  o Link to Group 1 by using the ON or OFF Button. o Link to Buttons A-H using the A-H buttons.
• Control
  o To control the Group 1 LEDs, simply send the Keypad a Group 1 On/Off
  command
  o To control the other LEDs, use the Extended 2E Set LED Bit Mask command to
  set those LEDs

of the LEDs when Detach Load is enabled

• Getting
  o To get the Status of the 8 LEDs (Group 1-8), use the Read Data 2E command and
  the Data 11 byte contains the LED State information.
  o To get the Status of Group 9 (The Load), use the Standard status request
  command Cmd1=19 Cmd2=00