Mass deletion of Videos/Events

I have been deleting old videos using the iPhone App. Under Events by Selection All and tapping the “Trash can” icon. This works fine, but it is tedious to do this for each individual day. How can I select and delete a range of days worth of videos?
I have previously “Archived” all the videos I want to keep (on a USB stick) but did not see an option there to delete the original after downloading. Is there a method I do not know about?

clearing videos and events varies depending on your camera setup. if your camera setup uses either the homebase 2 or homebase 3 open the app and click on the homebase you want to cleanup. then click on storage or storage management depending on the homebase and you should have the option to clear all videos and events.