Clustered Column Chart by Akvelon has similar functionality as product Clustered column chart and allows you to plot bars based on category and value data from your data source. Additionally it supports rectangle selection - such filtering allows to select multiple columns within rectangle area. This feature will help you to filter specific cluster within your data and update your report accordingly.
Other important features are:
- Legend that supports selection
- Ability to change colors of the columns - you can set specific color for each Legend category
Note: Color saturation can be set only if Legend is not set.