I'd like to add up the time spent on all slips in the summary area of an invoice, to say something like "Total Fees: 4.75 hours @ $100/hour" before the total. The slips would all have the same hourly rate so that isn't a problem. I've found what to use for the rate, but the sum of the times on the slips is eluding me. Anyone have a clue to share?
I'd also like to have the ability to see total time spent on a project.
It would be a useful thing to put on invoices as noted above, but would also be helpful to see the totals in the interface (in the project list next to the money totals).
