PGROUP , PDIR use in consolidaiton,ownership

I have following question on ownership application and appreciate inputs...

1> Is it essestial to give the PGROUP detail in ownership data if the ownership package is not executed after entering the data?

We are entering the POWN, PDIR and METHOD in ownership application, but the ownership package is not excuted, but only the consolidaiton package is executed.

Is the PGROUP is referred during the 'consolidation pakage while execution?Which package uses the PGROUP?Appreciate inputs.

2>How is PDIR dimension used? WHat does it signify.

It is used by ownership or consolidation package?