Quick question, might be obvious, but how do you stop casting? I've used the Autocast > Autocast option, select the device, kept the current screen, and configured the notification - it duly appears and times out as directed. But the Chromecast screen then goes to black and my phone is still connected with "AutoCast Casting Screen... Casting Now" in the phone swipe-down. What is the Autocast command to stop casting so that it goes back to what it was doing before (in my case, the standard Chromecast photo slide show)? Thanks, D.