Click on home screen settings - system - gestures - navigation - and then click on 3-point navigation. The buttons will be set on the lower part of the screen
+
Click on home screen settings - system - gestures - system navigation - and then click on 3-button navigation. The buttons will be set on the lower part of the screen
Click on home screen settings - system - gestures - navigation - and then click on 3-point navigation. The buttons will be set on the lower part of the screen