Hi,

I'm try to grouping the invoice lines by category in my invoice form, in the tree lines view, but I can't. I try too the same in the print report o print invoice with no luck, some help about ? I'm usin v 6.0.4

In form view read about use group_by, but don't change nothing. In order lines i try this in xml, no result same with invoice lines:

<field name="order_line" mode="tree,form" colspan="4" nolabel="1" widget="one2many_list" context="{'group_by':'name'}">

Finally a need this grouping in the printed invoice, or report, it's possible to do ? group by Product Category using RML code ? or Aeroo Report ?

Thanks.