When you have a Trigger Gizmo with Door Interaction Prompt, how do you have the user interact?

Players will interact with a trigger gizmo by entering the trigger area if on VR or mobile, but if they are on mobile and you enable the toggle under the trigger gizmo property panel, mobile players will also see an E to interaction option, VR players will not. It is OnPlayerEnterTrigger. IndexTrigger refers to the trigger button on your controller that you pull with your index finger.