Nicolas, Just a note to say that these scenario "group_by" have been identified and reported in the spreadsheet with all scenario (it's even in the description of this bug): http://bit.ly/10WPN5S We did scenario on a few objects (invoices, SO) but scenario 1..6 can, of course, be duplicated for every object. (when something is identified due to the principle, they are chances that it appears on all documents) We just didn't do it as the spreadsheet would become very big. What we can do is to take a decision on which object we absolutly need to add a fields.related Sent from my iPad On 16 Apr 2013, at 01:23, Nicolas JEUDY