How to set Chrome OS to portrait mode

All you need to display in portrait orientation on Chrome OS, is adjusting the device settings.

Click on the Chrome Panel, on the bottom-right corner.
Click on the Gear icon for the device settings.
In the “Device” section, select “Display Settings”.
A pop-up window will appear. Select either “90” or “270” to display Chrome OS in portrait mode.
Exit with “Done”.

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