Propagating Enterprise Data Dictionary changes in the repository

I have just upgraded to Team Server 17.0. I am now trying to maximize our use of the features of the ER/Studio suite of tools to assist us in our efforts to gain traction in our data governance program. I am trying right now to establish an enterprise data dictionary to use across our various models. I have created a dm1 file with our enterprise data dictionary and have successfully created that as the Enterprise Data Dictionary in our repository. However, none of the items in my EDD (e.g. attachments, domains, etc.) show up under the EDD in my repository. In particular, right now I am trying to create custom attributes using the attachment types I created in my EDD. However, they don't show up in the repository, even though they have been created in the dm1 file and the EDD has been checked in to the repository.