Hi Christina,
You might want to build your own microflow to delete the test data.
That's how I did it in my application.
Kind regards,
Jeffrey
You can create a microflow (button) that retrieves all your test data and deletes it or a data grid with selection type Selection all and a select all button and delete button.
If you want a completely empty database, you could:
Bear in mind that this will get rid of everything - including users. You will only have the MxAdmin user, unless you create users on your development instance before creating the backup.