Access Level for creating Date Range charts in Instant Measurements Suite

For a user accessing Instant Measurements and Reporting Suite wants to create a Date range charts, then there must exist an entry in the ACL of Instant Measurements and Reporting database (ITQMeasure.nsf) with his name  or a group (which he is member of) with minimum access level of 'Author' with ‘Create Documents’ rights and of user type ’Person’ or ‘Person group’.