Following this process 1) does not replace the default packing slip, and 2) the pricing information CANNOT be removed, as it is an invoice template.  Please refer to the previous example with screenshots.  From this thread, alone, people have been asking for the packing list to be editable for 4 years now.  Do something about it please!

Also, using the gear icon to send feedback, locked up the tab in my browser.  I had to close it, and open a new tab.  So here I am, to leave my feedback.