Automatically Sort Out Invoice Line Items by Price

Posting on behalf of the customer. 

Currently, DEAR allows sorting line items for printed documents by SKU, screen order, alphabetical order, and stock locator/custom attributes.

It would also be good to have a sorting option by price. A good example is if we were to include some items for free in the invoice,  the customer prefers to have their most expensive items on the top of the invoice. Otherwise, it is not a very streamlined process (not visually appealing for the customers).

It is understood that the prices can be sorted manually by clicking the price header. But we want to eliminate this manual process as our invoices are sent out automatically.