Are you planning to mount some of your screens in portrait orientation? No problem. Once you have added your player to XOGO Manager using your simple PIN code, just use the dropdown menu to tell the player whether it should display content in landscape or portrait orientation.
Some players do not support portrait mode. FireTV/Firestick falls into that category at the time of writing. No problem! You can handle this from the design side. Please see this video tutorial: https://youtu.be/c-eTkGTq2wk