CAE LucinaAR User manual

User Guide
CAELucinaAR
Your worldwide
training partner
of choice
with HoloLens 2

Proprietary Notice
This document, including the information contained herein, is condential and/or proprietary to CAE Inc., and shall not be
reproduced or disclosed in whole or in part, or used for any purpose whatsoever without the prior written authorization of CAE Inc.
Trademark Information
Trademarks and/or registered trademarks of CAE Inc. and/or its aliates include but are not limited to Apollo, Ares, AresAR,
Athena, BabySIM, Caesar, CathLabVR, EndoVR, HPS Human Patient Simulator, iStan, Juno, LapVR, Lucina, LucinaAR, Luna,
Maestro, Muse, NeuroVR, Orion, PediaSIM, Vimedix, VimedixAR and Vivo. All other brands and product names are trademarks or
registered trademarks of their respective owners. All logos, tradenames and trademarks referred to and used herein remain the
property of their respective owners and may not be used, changed, copied, altered, or quoted without the written consent of the
respective owner. All rights reserved.
CAE ©2020

©2020 CAE 905K472552 i
Contents
CONTENTS
Cautions and Warnings .............................................................................................. 1
AC Adapter Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Battery Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potentially Explosive Atmospheres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Heat Related Concerns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Photo Sensitive Seizures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Skin Irritation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Helpful Links................................................................................................................ 5
Equipment Overview.................................................................................................. 7
What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Equipment Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Introduction ................................................................................................................ 9
Using Gestures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
The Gesture Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Summon Menu Gesture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Gaze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Air Tap Gesture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Air Tap and Hold Gesture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Hand Ray Gesture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Zoom and Rotate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Resizing Holograms and App Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Follow Me, Stop Following . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Voice Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Built-In Voice Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Environmental Anchoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Know Your Surroundings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Use in Safe Surroundings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
About Your Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Be Physically Capable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Stay Comfortable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Certain Situations Can Increase Your Risk of Discomfort . . . . . . . . . . . . . . . . . . . . . . . . .17
Consider Keeping Your First Sessions Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Take Periodic Breaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
If You Experience Discomfort . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Contents
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Setup Procedure ....................................................................................................... 19
Step 1: Access Azure Active Directory Account . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Step 2: Charge the HoloLens 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Battery LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Step 3: Adjust Hololens 2 Fit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Attach and Detach the Overhead Strap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Step 4: Power on CAE Lucina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Step 5: Power on the HoloLens 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Step 6 (Optional): Connect to Miracast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Step 7: Establish the Network Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Step 8: Update the Operating System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Step 9: Install and Update the CAE LucinaAR App. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Step 10: Download Updates from Microsoft Store . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Step 11: Configure the Start Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Step 12: Start CAE LucinaAR SCEs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Using CAE LucinaAR.......................................................................................................... 33
Launch the CAE LucinaAR App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
CAE LucinaAR App Icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Settings Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Physical Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Single User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Multi-User Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Holographic Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Single User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Multi-User Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
End the Simulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Power Off the Hololens 2 and Simulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Troubleshooting........................................................................................................ 45
Wireless Connection Issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Simulator Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Care and Cleaning..................................................................................................... 49

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Cautions and Warnings
CAUTIONS AND WARNINGS
AC Adapter Safety
Failure to take the following precautions can result in serious injury or death from electric shock or
fire or in damage to the device. To select an appropriate power source for your HoloLens 2:
• Use only the power supply unit and AC power cord that was provided with your HoloLens
2.
• Do not use non-standard power sources, such as generators or inverters, even if the
voltage and frequency appear acceptable. Only use AC power provided by a standard wall
outlet.
• Do not overload your wall outlet, extension cord, power strip, or other electrical
receptacle. Confirm that they are rated to handle the total current (in amps [A]) drawn by
the HoloLens 2 (indicated on the power supply unit) and any other devices that are on the
same circuit.
On devices where the AC prongs may be folded for storage, before plugging the AC adapter into a
power outlet, make sure its prongs are fully extended. On devices where the AC prongs are
removable and where the power supply uses a universal adapter, before plugging the AC adapter
into a power outlet, make sure the prong assembly is of the proper configuration for the power
outlet and fully seated into the adapter.
Battery Safety
The HoloLens 2 contains a 9V at 2A built-in battery. The battery in the HoloLens 2 is not user
replaceable. Improper use or disposal of the battery may result in explosion.
Do not heat, open, puncture, mutilate, or dispose of the product in fire.
Do not leave the HoloLens 2 in direct sunlight for an extended period of time. Extreme sunlight
exposure can cause battery damage.
Potentially Explosive Atmospheres
Areas with potentially explosive atmospheres are often, but not always, posted and can include
fueling areas such as:
• Below decks on boats
• Fuel or chemical transfer or storage facilities
• Areas where the air contains chemicals or particles such as grain dust or metal powders
In fueling areas, sparks can occur and cause an explosion or fire. When you are in a fueling area, turn
off your HoloLens 2 and do not remove or install battery chargers, AC adapters, or any other
accessory.

Cautions and Warnings
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Heat Related Concerns
The HoloLens 2 may become very warm during normal use. HoloLens 2 complies with the user-
accessible surface temperature limits defined by the International Standard for Safety of Information
Technology Equipment (IEC 60950-1).
To reduce heat related concerns, follow these guidelines:
• Allow for adequate air circulation under and around the device.
• Use caution when operating your device with a pillow, blanket, hat or other soft material
contacting the device because the material can block the airflow which may result in the
device overheating.
• If your device gets uncomfortably warm, remove it and allow it to cool.
Photo Sensitive Seizures
A very small percentage of people may experience a seizure when exposed to certain visual images,
including flashing lights or patterns that may appear in virtual environments.
The risk of photosensitive epileptic seizures may be reduced by taking the following precautions:
• Use the HoloLens 2 in a well-lit room.
• Do not use HoloLens 2 when you are drowsy or fatigued.
• If you or any of your relatives have a history of seizures or epilepsy, consult a doctor
before using HoloLens 2.
Even people who have no history of seizures or epilepsy may have an undiagnosed condition that
can cause these “photosensitive epileptic seizures” while watching virtual simulations.
These seizures may have a variety of symptoms, including light-headedness, altered vision, eye or
face twitching, jerking or shaking of arms or legs, disorientation, confusion, or momentary loss of
awareness. Seizures may also cause loss of consciousness or convulsions that can lead to injury from
falling down or striking nearby objects.
Immediately stop using the HoloLens 2 and consult a doctor if you experience any of these
symptoms.

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Cautions and Warnings
Skin Irritation
The HoloLens 2 is made of materials commonly used in wearable consumer electronic devices.
However, certain people may develop skin irritation due to allergies or sensitivities.
To reduce the risk of skin irritation:
• Wipe your device dry with a cloth if it gets wet.
• Avoid using lotions or other products under the portions of HoloLens that contact your
head.
• Do not wear over injured skin.
• Adjust the headband only until snug – avoid tightening the headband uncomfortably.
• If your skin becomes irritated, stop using the HoloLens 2 device.
• If symptoms are severe or persist, consult your physician.

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Helpful Links
HELPFUL LINKS
• HoloLens 2 Hardware: https://docs.microsoft.com/en-us/hololens/hololens2-hardware
•HoloLens 2 fit and comfort FAQ: https://docs.microsoft.com/en-us/hololens/hololens2-
setup
•Charging HoloLens 2: https://docs.microsoft.com/en-us/hololens/hololens2-setup
•HoloLens 2 LED Lights: https://docs.microsoft.com/en-us/hololens/hololens2-setup
•Turning HoloLens 2 ON or OFF: https://docs.microsoft.com/en-us/hololens/hololens2-
setup
• Setup Hololens 2: https://docs.microsoft.com/en-us/hololens/hololens2-start
• Using Gestures: https://docs.microsoft.com/en-us/hololens/hololens2-basic-usage
• Connect to Miracast: https://docs.microsoft.com/en-us/hololens/hololens-connect-
devices#connect-to-miracast
•Environment considerations for HoloLens 2: https://docs.microsoft.com/en-us/
hololens/hololens-environment-considerations
•Caring for and cleaning your HoloLens 2: https://docs.microsoft.com/en-us/hololens/
hololens2-hardware
•Additional instructions and references: https://docs.microsoft.com/en-us/hololens/

Helpful Links
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Equipment Overview
EQUIPMENT OVERVIEW
The Microsoft Hololens 2 provides a more immersive, untethered experience with more options for
collaborating in mixed reality.
What’s Included
• HoloLens 2
º Visor
º Headband
º Brow pad
º Overhead strap
º USB-C Cable
º Power supply
º Microfiber cloth
• Documentation
Equipment Features
The table below lists the basic equipment features included that will aid you in using the Hololens.
For more information about the Hololens 2 hardware, go to this link: https://docs.microsoft.com/en-
us/hololens/hololens2-hardware
Component Description
Visor The visor can be lifted up while wearing the Hololens 2
Headband Tighten or expand the headband by turning the adjustment wheel
on the back to the right or left
Power button Located on the back, right side; displays a LED battery level indicator
Brightness buttons Located on the left side
Volume buttons Located on the right side
Overhead strap Attach for comfort when wearing the Hololens 2 for an extended
period
USB-C Cable Connect to power supply for charging or connect to a computer
Power supply 18W charger, 9V at 2A
Microfiber cloth Use to clean the visor

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Introduction
INTRODUCTION
Prior to beginning setup, it is important to understand some basic concepts and environmental
considerations to ensure a safe and productive learning experience.
Using Gestures
The Microsoft HoloLens 2 utilizes several gestures that users should become familiar with to properly
operate the device. This section will explain these gestures to help orient yourself in using the
Hololens 2.
The Gesture Frame
HoloLens 2 has sensors that can see a few feet to either side of the user. When gestures are used,
they must be kept inside that frame for HoloLens 2 to detect them. As the user moves around, the
frame moves with them. When the user’s hand is inside the frame, the cursor will look like a ring.
When HoloLens 2 cannot see the user’s hand, the cursor changes to a dot.
Gesture Frame
Summon Menu Gesture
The Summon Menu gesture, also referred to as the Start gesture, is used to open the Start menu and
navigation menus. If a user is uncertain of what to do, the Summon Menu gesture is a good way to
get reoriented.

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To summon the Start menu or navigation menu:
1. Hold out your hand with your palm facing you.
2. You will see a wrist button appear over your inner wrist. Tap this wrist button using your
other hand.
Wrist Button
3. The Start menu or navigation menu will open.
4. To close the menu, repeat the Summon Menu gesture while the Start menu is open. You
can also look at the Start menu and say, “Close”.
Summon Menu Gesture

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Introduction
5. You can also open the Start menu with only one hand by using the Summon Menu gesture
and Gaze at the wrist button. Pinch your thumb and index finger together while keeping
your eye on the wrist button.
Gaze at Wrist Button then Pinch
Note: This applies to all menus. Each time you need to open a menu, use the Summon Menu
gesture. This gesture is shown at the following link: https://docs.microsoft.com/en-us/hololens/
hololens2-basic-usage
Gaze
Gaze can be used to move the cursor and highlight apps and other holograms for selection. The
cursor follows whole head movements as opposed to simple movement of the eyes.

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Holograms are highlighted when they are available to be selected.
Gaze
Air Tap Gesture
Use Air Tap along with Gaze to select apps and other holograms.
To use Air Tap:
1. Gaze at a hologram.
2. Hold your hand straight out in front of you in a loose fist.
3. Point your index finger straight up toward the ceiling.
4. Point your thumb straight out, forming an “L” with your index finger.

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Introduction
5. Keep your elbow low and comfortable.
Air Tap
6. Tap your finger down, then quickly raise it back up again.
Air Tap and Hold Gesture
To Air Tap and hold, start with an Air Tap but hold your finger down instead of raising it back up. This
is also referred to as a pinch.
Use Air Tap and hold to:
•Drag: Air Tap and hold on an icon, window, or 3D hologram then slowly move your hand
up and down or side to side to drag it to the desired location.
•Pin, unpin, or uninstall an app: Air Tap and hold the app icon in the Start menu or in the
All apps menu, then Air Tap pin, unpin, or uninstall. Air Tap again to pin or unpin it to the
desired location, or Air Tap uninstall to uninstall the app.
•Move an app: On the app bar, Air Tap and hold on the app. Continue gazing at the app
window, then move your hand to position the app.
Hand Ray Gesture
The hand ray gesture allows you to interact with holograms or menus out of reach, also known as far
field manipulation. It is used to interact with menus and content in the application.

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To use the hand ray, place your palm forward facing you with your elbow relaxed, and draw an
imaginary line from your shoulder to your palm. As the hand ray moves over objects, a white line will
appear between your index finger and thumb, and the cursor in the application. When the line is
white, you can interact with the object in the distance by performing an Air Tap.
Hand Ray Gesture
Note: To show or hide hand rays, say “Hide hand rays” or “Show hand rays”.
Use Air Tap to perform the following actions with hand ray:
•Scroll: On the app bar, select the Scroll Tool. Air Tap and hold until the tool appears, then
slowly move your hand up and down or side to side. To scroll faster, move your hand
farther from the center of the tool.
•Grab: Grab an app window or hologram to target the app title bar or hologram with the
hand ray gesture and then Air Tap and hold. One or both hands can be used to perform
these actions.
•Open context menus: Air Tap and hold with the hand ray gesture.
The hand ray gesture is shown at the following link: https://docs.microsoft.com/en-us/hololens/
hololens2-basic-usage
Zoom and Rotate
You can move, resize, and rotate app windows and 3D objects using the pinch or grab and hold
gesture with hand ray. One or both hands can be used to perform these actions.
Zoom:
•Zoom IN: Pinch or grab and hold, then slowly move your hand(s) towards you
•Zoom OUT: Pinch or grab and hold, then slowly move your hand(s) away from you

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Introduction
Rotate:
•Rotate CLOCKWISE: Pinch or grab and hold, then slowly move your hand(s) towards the
left
•Rotate COUNTERCLOCKWISE: Pinch or grab and hold, then slowly move your hand(s)
towards the right
Resizing Holograms and App Windows:
•Resize holograms: Pinch your index finger and thumb on the hologram or face your hand
down and close your fist over it. Grab the resize handles that appear on the corners of a
3D hologram and push or pull to resize it. Release your fingers to place it. You can also use
the resize controls (up, down, left, right arrows or the rotate arrow). One or both hands
can be used to perform these actions.
•Resize app windows: Pinch your index finger and thumb on the hologram or face your
hand down and close your fist over it. Grab the resize handles that appear on the sides
and bottom edges of an app window and push or pull to resize it. Release your fingers to
place it. One or both hands can be used to perform these actions.
Note: These gestures are shown at the following link:https://docs.microsoft.com/en-us/hololens/
hololens2-basic-usage
Follow Me, Stop Following
Holograms and app windows by default will remain where you placed them. The Hololens 2 allows
these holograms and app windows to follow you as you move around if you prefer. To ask an app to
start or stop following you, select Follow me in the top right corner of the app window next to the
Close button.
Voice Commands
In addition to hand gestures, you can use your voice with the Hololens 2 to perform many actions.
Built-In Voice Commands
Be sure to enable speech by navigating to Settings, then Privacy, and turn Speech ON. Speech is
only supported in some languages. Each voice command can be executed by all users regardless of
their Shared Experience Mode unless stated otherwise.
The following list contains a description for each voice command:
Voice Command Description
“Select” Bring up the Gaze cursor; turn your head to position
the cursor as needed and say “Select” again
“Go to Start” Opens the Start menu

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For more information on voice commands, go to this link: https://docs.microsoft.com/en-us/
hololens/hololens-cortana
Environmental Anchoring
The stability of the anchoring is highly impacted by the knowledge the HoloLens 2 has of its
environment. It is important to scan your surroundings when using the HoloLens 2 in a new room.
This prevents the hologram from drifting causing the device to lose its tracking.
Prior to launching CAE LucinaAR, walk around with the HoloLens 2 on your head so it can map the
surroundings. Microsoft suggests doing this for between 5 and 10 minutes, to look at the ceiling, the
floor and other objects from all sides. This step is important so the holograms stay grounded in the
world preventing the device from "getting lost". One trick is to finger tap in the air while looking
around. This directs the device to return visual feedback on its spatial mapping, drawing green
triangles on the surfaces it knows about.
Note: The HoloLens 2 continuously tracks its surroundings to maintain its position in the World.
Below are examples of things that can confuse the device. None of them is critical by itself but
combined they can create a bad experience where the device may lose its tracking ability.
• Windows, mirrors
• White empty walls (posters help)
• No furniture
• Looking at a display monitor (ex: having a large TV in the field of view when looking at the
manikin)
Note: During the experience, you may see an image with the following text: Trying to map your
surroundings… This message is an indication that the HoloLens 2 is having difficulty tracking the
environment. Ensure that you are taking the environmental conditions listed above into
consideration and scan your environment with the HoloLens 2 until the warning disappears from
your field of view.
Know Your Surroundings
Getting around HoloLens 2 is a bit different from using Windows on other devices. Instead of moving
the cursor with a mouse, you use your gaze instead of moving a mouse and hand gestures instead of
clicking or tapping.
“Close” Closes the Start menu
“Go to Start”, then “Mixed Reality Home” Leave an immersive app
“Show hand ray” / “Hide hand ray” Show or hide hand ray
“What can I say?” See list of available commands
Voice Command Description