the wpforms_email_display_other_fields filters non-input field types to include in {all_fields} output.
wpforms_math_captcha
The wpforms_math_captcha filters setting properties are applied to the Custom Captcha field in WPForms.
wpforms_display_submit_after
The wpforms_display_submit_after action fires just after the submit button element is displayed.
wpforms_display_submit_before
The wpforms_display_submit_before action fires immediately before the submit button element is displayed.
wpforms_process_before
The wpforms_process_before fires after a form’s submit button is clicked, but before form data is validated or cleaned.
wpforms_frontend_output_before
The wpforms_frontend_output_before action fires before a form is displayed on the site's frontend, only if the form exists and contains fields.