Inside PAS you can write a procedure to consolidate the data. I don't have access to a working system so I am doing this from memory and there may be errors in my code. It will need to be something like this.
Select Dim Dimension1
Select Dim Dimension2
... and so on for each dimension your variables are dimensioned by
Set period Jan 2012 - Dec 2012 ... or whatever date range you can data for
Consolidate KPI1_Act
Consolidate KPI1_Tar
Consolidate KPI2_Act
Consolidate KPI2_Tar
... and so on for each KPI.
Run the procedure and it will reconsolidate the data.