Cannot add Policy Documents

One quick question. Is the Domino Directory the Name and Address Book? I am trying to add (create) a Policy Document but I keep getting the following msg:

You are not authorised to add Policy Documents to the Domino Directory.

I’ve looked at the ACL of the NAB and I am listed as Person with Manager Rights as well as PolicyCreator and PolicyModifier roles.

What am I missing?

Thanks!