You can use the Pivot Table dimension values to refine the project data.
If a dimension allows refinement, then when you click the dimension values in the row and column headings, the data is refined by that value.
When you click a metric value, then the data is refined by all of the dimension values that apply to that cell and that allow refinement.
For more details on refining by data on a component, see Using a component to refine data.