An Attachment subscreen can be seen on the Project screen.
This optional screen is aimed at Customers that want to be able to upload or URL-link project-level documentation (eg Project Plans, Project Charters etc) in ActiveControl. Depending on your organisations installation of ActiveControl, the Attachments subscreen may not be visible. If you do not see it, it likely means that your ActiveControl Administrator has hidden it via Feature Deactivation, probably because documents do not need to be added at Project level as part of your processes within ActiveControl.
Figure: Attachments subscreen on the Project screen