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Change screen orientation in GenyMotion

Ensure like in your Android Devices, you've set the screen orientation to Auto-Rotate. It should not be in Portrait or Landscape mode, otherwise the user actions in this blog post won't work. And that is correct behaviour :)

Alternatively, go to SETTINGS -> DISPLAY and check Auto-Rotate option
Keyboard Shortcut:
Ctrl + F11 for non-mac systems
Cmd + F11 for Mac

The Mouse Way:
Click the Auto-rotate icon that can be seen on the RHS bar in your Genymotion device? The icon is highlightened by blurring the other areas in the picture below for your reference.