The eCabinet "document attachment" screen will ask, for every document, two "Rule 6" questions: (1) is the document you are filing public under Rule 6; and, (2) if the document is public does it contain data that is confidential and therefore redacted.
If the entire document is not public under Rule 6, you can indicate that to the system. It will be filed electronically with applicable security.
If the document is public, but has confidential data, the filer is responsible for redacting confidential data under Rule 6. The system will allow you to file two documents "clipped" together -- the redacted parent document and a second, connected document that contains the reference list of confidential elements (or an unredacted copy of the redacted document.)
If you file a public, redacted document with a confidential redacted document attached, you will see a "paper clip" icon next to the public document listed on the eCabinet "review filing" screen.