When viewing form submissions online, I have the option to delete a single submission. But sometimes, I would like to delete all submissions in a form, and start over with collecting entries. How about adding a "Delete All" button? It would need to then ask to confirm that you wanted to delete all submissions, i order to make sure this wasn't done accidentally. Would be useful to me, so I am sure others would find it useful also.
I know I could clone the form and have the same form, but then I would need to change the form code on the website(s) to match the new form. Deleting all form submissions, would make it easy.