Hello,
I need your swarm knowledge.

I am trying to add a new filter condition to the pivot table for the account.invoice.report model. But without success.

Does anyone have a example of how to extend the pivot tables accordingly?

I have currently extended the model account.report.invoice with more fields that I want to add to the model.

Example:

partner_zip = fields.Char(string='ZIP', related='partner_id.zip',store=True)

I would now like to group by this in the pivot table.