When setting up sessions on your Dashboard Pigeonhole, you can now duplicate an existing session.
On your Dashboard Setup > Agenda page, beside each session, click on the button with the arrow icon pointing down. You'll now see a new option, Duplicate.
When you click on that, you'll be brought to the Add Session page, with all the details of that session filled in. From there, make any changes you need, i.e. session name, timings etc., and just click Add.
This works for any session types, including Q&A, Poll and Survey!