CPI and SPI in cube?

I want to create some reports using Dashboard Designer consuming data from the Project Server 2010 cubes, but I can't find the CPI and SPI values anywhere.

I tried adding them as calculated measures using a simple MDX expression (something like Memeber name: CalculatedCPI; MDX Expression: [CPI]) but that did not work.

Option A) Is there a cube that already has these two values? (I could not find them)

Option B) How to add these two values to the Project Non-timephase cube?

Thanks in advance,