How does the new Multi-user mode work?

How does the new Multi-user mode work?

The Multi-user mode allows the following actions:
  1. Consult who are the connected observers
  2. Let go of the control of your instrument
  3. Take control of an instrument
To perform these actions, go to
Your Space Center (1st tab) > Click on your Stellina or Vespera instrument > Click on Control