Account and Event Administrators can add Session Chairs and Locations within the Online Conference Program Builder, which then become selectable when creating/managing sessions.
Click 'Manage Locations' in the Program Builder then click 'Add New Location'.
Enter the location name then click 'Save'
Click 'Manage Chairs' in the Program Builder then click 'Add New Chair.
Enter the Chair's name then click 'Save'
Selecting Locations and Chairs within a Session
All locations and Chairs added will be selectable in the relevant fields by clicking the dropdown arrows within the 'New Session' or 'Edit Session' screen. See also Setting Up Your Online Program