Indigo provides some advanced options for the various X10 RF interfaces (including the CM15 which is both Power Line and RF). Select
Configure… from the
Interfaces→X10 RF menu, then click on the
Interface Options… button. You'll see the
RF Interface Options dialog:
This dialog will allow you to specify which X10 house codes the interface will respond to. You can also optionally have that house code remapped to another house code and retransmitted on the PowerLine.