Bulk delete FormIt submissions

Hi there,
I have been making a form for a client. The submissions are saved using the the FormItSaveForm hook. When the client need the submission data, they go to the Extra/Formit menu and export a csv-file. They can remove/delete the submissions one by one.

I would like to make it possible to bulk delete these submission, but where do I start? Anyone who could point me in the right direction? An option for bulk deleting uploaded files in the mediabrowser would be nice too.

Best regards Gitte

You could bulk delete it directly from the database I'd imagine but can't recall off hand where they are stored.

Regarding deleting media you could create a snippet to delete folders and files are X date and run it on a cron job to continually prune old assets. Likewise you could create a snippet just for a one time purpose of deleting specific folders. Just be careful and backup first

Well, deleting from the database would be an option for me, but not for my client, I was looking for a more simple way, making it possible for the client to do it by themselves. You know something with checkboxes and a deletebutton within MODX