Preset
Look
Mixed Reality
Gestures
Fit to my head
Tip: pick Solid, set "Real me through" to about half, then line the skull up with your face.
Standby
Objects view
Head model
Body model
Hand model
Anatomy models: BodyParts3D (c) DBCLS, CC BY-SA 2.1 JP, modified. Typical anatomy, not a medical tool. Video stays on this device.
A Black Cube instrument