Yes sure, next time I will take care of it. I used this approach of using the same thread for multiple questions as its easier to track the updates and follow up.
1. This setting will apply for all groups. I want to set, lets say, 6 different colors for six different groups based on the group name. That means while loading the chart I want to set the color "Blue" if Group Name is "A", "Green" if group name is "B". Like that I want to set the colors from code behind for each group individually.
2. RadOrgChart is more user friendly and actually to the point than RadDiagram when its comes to Organization Charts. I prefer using the same. However, please tell me how to set the item width / height of a particular node and group.
3. I am using the same approach "RadClientExportManager" and it exports RadOrgChart elements only but I want to add custom labels and fields. In short design the PDF with headers / footers and adding custom labels and elements in it before exporting it to the PDF. Please see untitled.png.