To edit multiple session details faster, you can use the Bulk Edit option to update multiple sessions with the same information. You can only bulk edit future sessions.
Bulk Updates for Multiple Sessions
Go to Event Content > Agenda in the admin console
Hover on the left side of the session name to see the checkbox
Select the sessions that you want to edit
Click Bulk Edit on the top menu
Select which session property to update
Date & Time
Capacity
Session Type
Location
Speakers
iFrame
Edit the session property settings
Click Update
