According to the doc https://support.rachio.com/hc/en-us/articles/115010541528-Remote-Control-Overview my Gen 1 “can only support the stop function within the remote.” I sure hope that doesn’t mean that I can no longer do a manual run of my Rachio!!! - I would test it out but it’s raining cats and dogs right now.
I think it means the Gen 2 button can stop or pause, and since the Gen 1 has no button, they can only do this via remote (app).
Ohhhhhhhh. Now I get it. I’m a little slow today!