Since Sembly can't record longer meetings yet, you can join the same meeting as many times as you need. To do so, follow the steps below:
Log in to your Sembly account and check if your calendar is connected. If not, you can connect Outlook Calendar or/and Google Calendar
In your calendar, duplicate the meeting you are about to hold as many times as you want your meeting to last. Keep 5-hour intervals between meeting duplicates
Check your meeting list in Sembly. All duplicates with time intervals should be synced from your calendar
All meetings must have the same meeting link in the meeting description.
That's it. Start your meeting, and as the 5 hours end, a Sembly agent will drop off the call, and a new agent will show up.