Group account entries lines

By default the account module does not group all the entries related to a single account
You can check a box that will do it but the grouping is performed according to text field
(which is the product name when making sales or purchases)
This ha to be changed to group together all entries related to the same account
From an accounting point of view we don't care about the products that has been sold
but which account they will impact.(you can always assign a specific account to a product if needed)

Maurice