I am a management consultant who uses the Estimate feature to send proposals to clients, detailing the scope definition and tasks for their approval. Once they approve an Estimate, I should be able to import it directly into Timehseet Projects with all of the Tasks so I can charge time against the Tasks as proposed. Better integration with Zoho Projects (i.e. importing project tasks into Timesheets and Invoices) would be even better, but within Invoice, the Estimate should be transferred to the Timesheet so an invoice can be generated each month with whatever tasks have billable time charged against them.