At the Content tab, select 'Agenda' on the event app menu, followed by the 'Edit' icon of the selected session.
To assign a speaker to a session, select the Groups tab and click 'Add New Group'.
Enter the group name and click the 'Tick' icon to save.
Click on the 'Add User' icon to the right of the Session Group name and select the Speaker you would like to add.
If you have not added any speakers, please refer here for steps on adding Speakers.
Session Groups will be updated once you had added a Speaker.
Multiple session groups may be added for a single session. Please refer here if you would like to reorder the session groups.
Below is an example of speakers under session groups for a session: