1. Tap Settings from the side drawer.
2. By default, Right-to-Left Support is enabled only if the device locale during installation is set to right-to-left. Tap or slide the toggle to enable it.
If Right-to-Left Support is enabled, you can switch between right-to-left mode and left-to-right mode.
1.Tap the overflow button in the Viewer on the top right, then tap on View Mode. If you are using the Compact UI, then you will need to first switch to the View Toolbar. If you don't see the Action Bar, tap the center of your screen to bring it up.