Hide KM Content in Content Administrator role

A common question is asked by the business to remove the KM Content workset in the
standard Content Administrator role.. lets see how we can do this..

1) create a delta link copy of the role pcd:portal_content/com.sap.pct/administrator/content_admin/
com.sap.portal.content_admin_role
2) open the role and remove the Workset KM-Content
3) assign your user to the new role
4) check the thrown exception via LogViewer.
5) Go to System Administration -> Permissions and add your new role to the object:
Security Zones / sap.com / NetWeaver.Portal / medium_safety / com.sap.portal.appdesigner.contentcatalog / components / Framework
6) Give Read Permission and set the End User flag
7) login with your user added in step 3)