Add shipping slip

Hi folks,

Here is my attempt. If it is workable, I would like to add shipping slip along with returning address, instead of payment address on the invoice. I attempt to change word “invoice” to “shipping slip”. I would like to skip below part Order History by adding “Reasons of merchandise return”. Please give me advise how to do it and where else should be done at the time.

I have one more desire that to make this shipping slip printable or exportable to Excel…. I am very newbie to this field, especially the script development.

Is it able to have it added???

Hello yl,
If you can't work it out yourself, David has done some work on invoices
You could PM him for help but it might be considered commerical work ie need $$$$$
David is here:
http://forum.opencart.com/index.php/topic,2019.0.html