hello, I am a beginner at using Jaspersoft pie charts and I was asked to generate an Ad-Hoc dual-level pie chart... could someone me a tutorial or some material for it? basically the information I need to show is as follows: - Domain: I firstly selected a pre defined Domain on my Projects Data (project info within the company) and selected 2 fields (department and project names) and 2 measures (nb hours and total cost) - Inner Circle: Department (for example: HR, Finance, IT, etc) - Outer Circle: Project Names (for example: New Website, Maintenance, Support, etc) - Measures: Nb hours worked and Total Cost How could I arrange the data so that it works? I do not know where to drag and drop my data using the Ad Hoc interface... I tried to drag Department and Project Names into "Rows" and Measures into "Columns" but I keep getting error messages or it simply does not show any data or empty chart :((( Many thanks in advance