The Enroll Form builder page (My Company > Forms > Enroll Form) can get a little crowded if you have fields that you don't want to delete but have chosen to hide on the Enroll Form or Customer Portal. However, Admin users can easily show or hide those Enroll Form fields that have been marked as hidden or not visible to customers. Here's how:
On the Enroll Form builder page, at the top, toggle the switch beside "Show Hidden" to either show (if the toggle is "on," the hidden fields will be shown) or hide (if the toggle is "off," the hidden fields will be hidden from the Admin view.

