Adding icons to remote.

You can add the buttons but if the locomotive is not programmed for the features then nothing will happen when you press the button.

My guess is it won't work, because the icons would be there if it had Rule-17 lighting.

My advice is try it.  Although I would suspect that if Rule 17 was an option it would have loaded with the orange module, my PRR Texas class module loaded Rule 17 and Tender marker lights.  When I got LSU I changed out the Rule 17 , after setting it for auto, with engine marker lights and it worked.

So some engine can do more than what the orange module loads.  It certainly doesn't hurt to experiment as you can see above.

LSU lighting ICONs are a good way of finding some hidden features for now.