The down side is, this only seems to work if you have up to 2 sections per column. The data I am trying to display is from a survey looking at responses from pharmacists and from technicians. The possible answers are: very satisified, satisified, neutral and dissatisfied.
Visually the aim is to have 4 questions each with 2 clustered column graphs. Each column may be split into as many as 4 sections.