Currently, if you add a product item to a quote (Not using multi-line order entry) you can search for the product and then press enter/tab to add it to the quote. The text cursor will go straight to the quantity field. Pressing tab to move to the next field will move the text cursor through the editable fields from left to right. Any fields before quantity need to be selected with the mouse, which can be tiresome when trying to add multiple quote lines quickly using the keyboard.
If instead, after adding the line, the text cursor went to the first editable field on the line and then through the rest (left to right when tab is pressed). This would allow the user to have better control over this and increase the efficiency for keyboard users.