To edit multiple session details faster, you can use the Bulk Edit option to update multiple sessions with the same information.
Bulk Updates for Multiple Sessions
Go to Agenda & Speakers 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
Session Type
Location
iFrame
Edit the session property settings
Click Update
Note: You can only bulk edit future sessions