I have set up a bar chart that has the dimension of 'year' and a drill down group which drills down from 'College' to 'School'. This allows for a 3 year overview of my data before applying the drilldown. I have then created 3 expressions in the chart. I would like to be able to view the data always by the 3 years even when drilling down to college and school level and would like the 3 expression bars to be seperate rather than stacked. Can anybody advise if this is possible?