I am new to all this, seem to understand the basics of the tech. Just wondered if in the mobile app (for me it would be iOS), if you can use the app on multiple devices at once in order to cast onto one, and use the second as a remote. I understand you can use a roku, Amazon Fire, Apple TV, ect, to cast to, from a device with the full paid sling player app, and that mobile device works as kind of a remote. I just wondered if this sort of thing is possible between two mobile devices. I already have an apple hdmi adaptor to mirror my iPad. Would love to be able to use the app on my phone simultaneously as a remote. Don't really want to have to buy roku, Amazon Fire, or Apple TV. Thanks!