In some worlds, additional button inputs may be accepted using a feature called Cluster HUD v2.
In non-VR environments, buttons may appear on the screen, or corresponding actions may be displayed. In VR, you can display the button menu by pulling the trigger on your right hand controller.
When you pull the right-hand trigger, a pie menu like the one shown in the image will appear.
While the pie menu is displayed, you can perform the corresponding button input by tilting the right stick in the direction of the desired icon.