Dear all,

I am trying to customize Sales Order treeview by adding column with value of amount to be paid. Situation is as follows - I have sales orders which has partial invoices attached (and paid). So each Sales order has few invoices. In tree view of Sales Orders main value users can see is Total amount of specific sales order. What I would like to do I would like to add value of amount to be paid.

I have found fields that I can base my calculations (from sale.order object):

• amount_total
• invoiced_rate

My calculation for additional field should be something like: amount_total * (100% - invoiced_rate)

The issue is that I do not know how I can create field that will compute it and where should I put it? The main issue is that I do not want to create a moudle for that (it should be customisation from UI).

br

Dawid