I’m using Realdash on a Windows Surface Tablet, I’ve set it up to read data from my Syvecs ECU and transmit data such as the Calibration (active map), Traction Control, ALS, Launch Control etc.
I was thinking whether it would be possible to use an external input (e.g. a button box connected to the tablet via USB) to trigger actions such as changing the page, or changing the values on my UI gauges, or skipping to the next song 
Under Actions → Device Inputs beyond, I couldn’t find an option to map a keyboard input. Is there a plan to support this in the future. I saw a mention of this on another post.
BTW - I know I could use a canbus button box, and do it that way, but the cost is 10x compared to a USB version (which I know is more intended for sim racing).
Just a thought.