Our apologies for the late reply.
The response to group commands (those sent by a controller like the KeypadLinc) are only implemented for zones 1-8 and Programs 1-4 (corresponding to the number of taps 1-12 that are entered while linking). We did not have the foresight to implement the additional commands of “skip valve” and “inhibit”. We’ll consider those and any additional requests on any future firmware release.
As it was pointed out, the inhibit function can be implemented with X10 or with a direct Insteon command.
Thanks for the suggestion!