Hello @247web !
Hope you’re having a good day!
At the moment the only way to do this form the plugin itself is to delete them page by page.
There is a way to do that from the database as the submissions are stored in separate tables.
The general entries are being stored in the _frmt_form_entry table.
The data specific to each entry is stored in the _frmt_form_entry_meta table.
Please make sure to take a backup before proceeding further.
For example, on my test site if I want to delete all submissions for form with ID 81, I would run the following queries from PHPMyAdmin:
DELETE FROM wp_wl_frmt_form_entry_meta WHERE entry_id IN (SELECT entry_id FROM wp_wl_frmt_form_entry WHERE form_id = '81')
This gets rid of all the metadata for that form and then we can delete the general entries:
DELETE FROM wp_wl_frmt_form_entry WHERE form_id = '81'
You’ll need to adjust the form ID and also the database table prefix which will likely be different than the wp_wl_ that’s on my test site.
It doesn’t seem like we’ve had many requests for this feature as I can’t find any relevant task. I’ll create one based on your case.
Kind regards,
Pawel