Version - SQL Developer 4.0 EA1
Is it possible to specify more than 5 series options under "Plot Area" property of a Line Chart Report? I even tried editing the "User Report.xml" file to specify more than 5 series option, but it rendered report being not runnable or editable.
It's not currently possible to change the number of series options, but this is a very good suggestion which we will investigate for inclusion in a future version.
SQLDev Development Team.