The host, in a Virtual Training Room has a measuring tool, which is deactivated by default. Once activating the tool, in the bottom toolbar, the host can now click on any two points on the model in order to measure the distance between the two points in a straight line.
The host can only perform one measurement at a time, meaning:
First click: anchors point,
Second click: anchors second point and distance is calculated,
Third click: makes measurement disappear,
Forth click: starts a new measurement.
The tool is synced and can be viewed by all participants in the room.