See also: Service Reports, Service Reports-Ribbon, OLAP Control, OLAP Control Right Click menu
You can filter the Gantt data by either using first Group By filter, or first two Group By filters or all the 3 Group By filters. All the three Group By filters are dependant on one another in a way that the third is dependant on the second, and second on the first.
Figure: Gantt Options ribbon group
Group By - 1st Filter - Enables you to filter the Gantt data based on a specific field.
Group By - 2nd Filter - Enables you to further filter the 1st Filter data with a specific field.
Group By - 3rd Filter - Enables you to further filter the 2nd Filter data with a specific field.
You
can use 2nd filter only after you use 1 filter and, you can use 3rd
filter only after you use 2nd filter.