Zoho Project Task Hours direct to Zoho Books (without Timesheets)

Zoho Project Task Hours direct to Zoho Books (without Timesheets)

Hello,
I have my team entering their billable time directly into Projects against Tasks. Time is automatically approved. 

However, now I want to generate Invoices in Zoho Books, which looks closest to the kind of Invoice we want to generate; however, no time seems to transfer over from Project. (As a side note, the time does transfer successfully  and automatically into People)

Non-Billable time is of NO interest when billing a particular client and I don't want my team doing superfluous administrative tasks when they have already tracked their time inside of Zoho Projects already.

How do I get Zoho Project Task Hours into Zoho Books without needing to try to create Timesheets in Zoho People? I am kind of a novice, but I can't find an obvious answer to my problem so any help is appreciated.