Anyone using Books to track Project Profitability? If so, I could use some guidance

Anyone using Books to track Project Profitability? If so, I could use some guidance

Hello Zoho Community.

I am a recent subscriber to Zoho, and its part of an ongoing evaluation.  My company (and my clients) have extensive project-tracking needs.  The Projects module seems to be good from a project management standpoint, but I am perplexed how to accurately derive project profitability reports.

Since Books doesn't show the projects created in Projects, how am I supposed to generate Project Profitability reports?  Do I have to enter the same project in both Books and Projects?  

And it seems that in Books, I can't distribute charges on a given vendor bill among multiple projects.  Is this correct? 

And further, I do many month-end accrual entries for revenue, accrued expenses, deprec, prepaid exp amortization.  It doesn't appear that I can record a manual journal entry and assign the various line item entries to a specific project.  Is this correct?

If you are a project-intensive company, I'd really like to hear about how you are able to accurately track project profitability with the above limitations.  

Thanks in advance,
Mark