Which permission is requited to create or modify a Navigator view?

A.
User

B.
Modify

C.
Administrator

D.
Workspace Author Mode

Explanation:
http://pic.dhe.ibm.com/infocenter/tivihelp/v30r1/index.jsp?topic=%2Fcom.ibm.itm.doc_6.2.2f
p2%2Fdlg_useradministerpermissions.htm (custom navigator views)