iOS 9 introduced slide over and split view for iPad. How do I simulate these features on an iPad simulator? I have tried swiping from right on iPad Air 2 simul
if you're on Xcode 11 and still not able to get it to work make sure your project doesn't require full screen.
To verify go to your Target settings > General tab > Requires full screen and disable it.
Also I noticed that you've to start dragging from the black border of the iPad Pro simulator in order to get it to work. hope this helps someone.