How to get actual purchases on FSG report

Dear All,

Scenario

There is a inventory account named "Raw Material" where below transactions are booked from Inventory System.

Material Receipt   (Dr)

Material Issuance (Cr)

Material Return [from floor to back into Inventory] (Dr)

My Requirement

Extract actual purchases booked into above account on FSG report.

Problem

 If i use "Dr" coloumn on FSG, it will extract purchases + return

1) Please help out on this issue, i want to extract actual purchases on my FSG report

2) can i map GL catergory to a FSG line/coloum where i can find purchases.

regards