Project Cost Tracking

Project Cost Tracking

I see there are questions/concerns that Zoho doesn't track costs to a tasks in a project.  We are a manufacturer and are in the early stages of tracking costs to project.  I would like to expand out the COGS Chart of accounts in Books and record costs via expenses, bills, purchase orders, inventory adjustments, sales invoices, credit card expenses and time tracking to different COGS accounts.  I used the default COGS 5000 as the parent and created labor, material, subcontract, travel etc as extended accounts (sub-accounts).  I noticed that when I pull a project P&L, the only costs I can see are the ones recorded to 5000 (parent) and none of the costs recorded to the sub accounts.  Also, there is no way to record any inventory adjustments to a project. 

Any advice or suggestions welcome.