Finally, each page in the app has a center pane, where you will spend most of your time interacting within the app. The center pane will differ depending on where you are within the app.
For example, in Message, the center pane is your message thread, containing the history of a particular conversation. In Video, if you’re on the Meetings page, this page will contain a list of scheduled meetings for the day as well as action buttons to start, schedule, or join a meeting.