Can the DCOGS account be changed using SLA or Account Generator Process OM : Generate Cost of Goods

Q1.Can the DCOGS account be changed using Account Generator Process OM : Generate Cost of Goods Sold Account.

Q2.Can it be changed using SLA if not Account Generator.If so how do we make these changes?

We are using custom account generator to build COGS account as per the Order Type which is generating COGS account correctly and also generating one of the segments 'Account picked up from the Order type level and 'Product' segment  picked up from the Item Level.

In case of DCOGS the 'Account' and 'Product' segment is picked up as per default definition at Organization parameter level. We would like to change the 'product' segment as per the Product segment defined at  Item Level similar to COGS.