My experience with Hero Lab comes back with a simple answer... because no one has asked. In the past , WolfLair has developed datasets for new games that they knew they could sell. I don't know if ATOW has the draw.
BUT! The system is open, and there are editors for it, so someone wanting to be that enterprising could create the shell and then share it with everyone. I am not sure of the specific licensing from the WolfLair side, but I would be willing to bet that Catalyst Games would not have an issue as long as you do not try to market and/or sell it.