Use the Sidecar menu on Mac: You can easily change how you work with iPad from the Sidecar menu in the menu bar. For example, switch between using iPad as a mirrored or separate display, or show or hide the sidebar or Touch Bar on iPad.
Move windows from Mac to iPad: Drag a window to the edge of the screen until the pointer appears on your iPad. Or hold the pointer over the green button in the top-left corner of the window, then choose Move to [iPad name].
Move windows from iPad to Mac: Drag a window to the edge of the screen until the pointer appears on your Mac. Or hold the pointer over the green button in the top-left corner of the window, then choose Move Window Back to Mac.
Use the sidebar on iPad: With your finger or Apple Pencil, tap icons in the sidebar to show or hide the menu bar , the Dock , or the keyboard . Or tap one or more modifier keys, such as Ctrl , to use keyboard shortcuts.
Use the Touch Bar on iPad: With your finger or Apple Pencil, tap any button in the Touch Bar. The buttons available vary depending on the app or task.
Use Apple Pencil on iPad: With your Apple Pencil, tap to select items such as menu commands, checkboxes, or files.
If you turn on “Enable double tap on Apple Pencil” in Sidecar preferences on your Mac, you can double-tap the lower section of your Apple Pencil (2nd generation) to switch drawing tools in some apps.
Use standard gestures on iPad: Use your fingers to tap, touch and hold, swipe, scroll, and zoom.
On iPad, switch between the Mac desktop and the iPad Home Screen: To show the Home Screen, swipe up from the bottom edge of your iPad. To return to the Mac desktop, tap the Sidecar icon in the Dock on your iPad.