You can edit these Submission Requirements at the "Submission Preparation Checklist" section of the "Submissions" tab under "Workflow Settings", with instructional wiki page here. The Privacy Statement can also be edited on this "Submissions" page, with instructional wiki page here.
New Components can be managed or added under the "Components" tab under "Workflow Settings", with instructional wiki page here.
You can establish the standards and requirements for Submission Matadata at the "Submission Metadata" section of the "Submissions" tab under Workflow Settings, with instructional wiki page here.