If you need to create multiple events that are very similar (such as a roadshow), you can copy an event, then edit the details to reflect the new date and time, etc.
Log in to app.banzai.io.
From the event home page, click on your event name.
In the upper right corner, click Options > Copy.
Remove the word "copy" from the new event name.
Edit event details as needed.
Note: You can also copy an archived event and it will automatically create an active event for you to edit.