It's super easy to delete any project in 1SE. Great if you'd like to free up some space on your phone or quickly remove a bunch of seconds at once.
Simply go to your Projects menu in the top left corner of the app. Then "Manage Timelines". Next, press on any project you'd like to delete. This will bring up the option to select whichever project you'd like to delete and confirm it.
Keep in mind this will delete all the seconds within the project and isn't reversible. Proceed with caution.