hello.
i customized an existing template in order to obtain an invoice page displaying only the categories and the amounts, hours and starting-end date for the concerning category(ies). colums are as follows:

period description hrs/qty tva subtotal

using the following variables:

'slip start date' - 'slip end date' 'slip name' 'hrs/qty' 'slip taxes' 'slip subtotal'

unfortunately i got the impression that the hrs/qty' does not display regrouped amounts of duration pro category. what variable am i to use, also for the start and end dates of each category?

Thanks for your help.

F.