Sort Invoice By Model

Hi, is there a way of getting the invoice printed so it's sorted by Model low to high to make it easier picking products? Thanks

In file admin\model\sale\order.php

find sting (into getOrderProducts method) and replace to after, also recommended to refresh modifications cache

thanks That works for model. But any idea if we can sort the Invoice by Brand i.e manufacturer_id or manufacturer i did try with the same code but does not work. Can you please help.! Thanks

Holy Necropost.... but I can't find something newer.

I have applied the fix above and it great, using the Category ID as a prefix in the Model number we are able to group all like products together. Significantly speeding up the picking of products.

Is there a way to now group all the items in a single category in Alphabetical order as well. This will help to have a picking run in a single direction instead of hunting back and forth in the category.