An updated version of this helpdoc can be found here: https://helpdocs.conducttr.com/feature-documentation/running/players-training-audience/navigating-channels/solo-based-channels/email/email-management#emailing-multiple-participants
How do you cc multiple participants into an email?
It is possible, but you need to use “,” between each email. For example: maria@tstoryteller.com, robert@tstoryteller.com, nataly@tstoryteller.com.
You can also go to the Contact list and select other players or personas there, and also create groups.