More remotely operable relays.
Make a relay bank that is operated via the internet. Something like what controlbyweb makes, but able to be controlled by optics. Many off the grid locations need relays for remote control (battery watering, heater tape cut out, computer hard resets etc.) Being to control everything from your dashboard on optics would be great. The number of remote relays available in your devices is not enough for our needs and I suspect other outback customers are also going to outside vendors for this functionality.
Connects with my idea for an Integration to the Home Assistant:
Pretty much exactly what you're looking for already exists, and it just needs some connection to OpticsRE.