Additional fields not visible on the dit form

[acim]

If I have a three fields form with for example username, password, passcode (this is consisted of a pin and time based token together) and store this login in Enpass, it gets stored, but if I go to edit the entry, there is no passcode field. However, if I click on buttom "Show Webform" it appears there and it also gets filled to the original form. So the only problem is that it can be edited, deleted, whatewer.