Hi , What does this new feature do?

Hi can I ask you some thing are you a pro member ?
Yes I am
Yes , you are right maybe its because i am a beta tester
Means ,is there any advantage of having ’ Beta Tester ’ ?
I dont know , thats why i said maybe
I can see this option as well, being a beta tester.
It does exactly what it says.
If you change the option to “Phone + Landscape” and test your project in your mobile you will see that it will show in “wide screen mode” or horizontal view.
