But you can use other kind of message without sub address. Open the actions.xml file, you will find messages for X10 connector. Thoses messages have a fixed target (ersp.X10 connector.XXXXX.*) and the xlobby variable (the subaddress) is given to the ID field like ID=*Xlobby*
Then when you use X10 connector : On in your xlobby event, fill the variable with A1 for exemple, and the plug will replace *Xlobby* with A1 so you will have a message with target = ERSP.X10 connector.XXXX.* and in the first block a line with ID=A1.
The next version will let you give a Master variable (for the master target part) for each device...wait and see
