Hello,

I want to add a custom to sale.order field.

I can do it relational field like product_id.product_tmpl_id.x_mycustom field

But I don't know how to do this with multiple sale order line in my sale_order

In fact I want to add one page per product in sale order line in my sale.order view

I don't know how to start this.

Can you help me?

Thanks in advance