Use the sidebar to open favorite apps and features in small, freeform windows that you can move and resize. Or, open them in full screen.
Go to Settings > Gestures.
Tap Sidebar and turn Use sidebar on 
You'll see a sidebar on the right edge of your screen. Swipe it in to see a menu of apps that you can open.


On the sidebar, tap 
Or, go to Settings > Gestures > Sidebar > 
Customize the menu:


For easy multitasking, set apps to open in resizable freeform windows you can drag around the screen, or set them to open in full screen.
On the sidebar, tap 
Or, go to Settings > Gestures > Sidebar > 

When you're using apps: