Session sharing is not a part of Qlik Sense. We are looking into the various ways we can incorporate multiple screens into the Qlik Sense experience: There will be more information about these ideas sometime in the future.
Hello JF - we will make sure to update you, but please make a note of the following just as food for thought.
Current functionality in QlikView is not always intended to make a debut in Qlik Sense. The Qlik Sense approach is to find and implement newer and better ways of achieving a similar goal. For example - though session sharing (or an equivalent) is not available in Qlik Sense as a feature you can still collaborate and share your insights using the Qlik Cloud Sharing service. With the Qlik Cloud Sharing service you can upload a Qlik Sense app to the Qlik Cloud for others to view and interact with or make your insights available in a Data Story. So there are potentially other options that can "blow" our audience away. Perhaps blow them away and our competition out of the water.