Answer:
Once you open the Remora Administrative Portal, select the main tab called Forms, and the subtab Form Submissions (review how to access form submissions), click multiple submissions using the checkbox under the Select column (pictured below) to the far right.

Next, click on the red DELETE SELECTED button (previewed below) at the top, right corner that shows the number of submissions chosen for deletion.

Then, click OK in the confirmation message (illustrated below) appearing in the middle of your screen.

When viewing the details for an individual submission, you can also delete it by clicking on the red circle with an image of a trash can in it (depicted below) at the bottom, right corner of the page.

Please Note: Either option will remove the form from our system entirely and cannot be recovered.