When you are building your scenario you need to choose a piece of content that will be published in your players' first login.
To do this:
Right click in the content > Select "Publish on first login".
The colour of the content will change, just like the following:
- This first piece of content can be useful to get the name of your players just before starting the simulation.
- It could be also a way to give them some instructions about how the siimulation works.