I'd like to request sleep timer functionality be added to the External Control Protocol. I am currently using ECP keypresses to automate the start of the sleep timer on a Roku TV, however I worry that eventually something will change with the UI that will break it. Ideally, implementation would be an HTTP POST to /sleep/<DURATION> (in minutes) or something similar. This could be very useful to anyone who runs automation scripts before going to bed and tend to fall asleep with the TV on. Thanks for your hard work on a great product!