Solidcommerce offers the ability to customize your packing slip, invoice and email template within their system. here are some links to help get the job done:
Creating and editing Packing Slips
Download Packing Slip and Invoice Default Template
Customizing Automated Purchase Order Emails to Vendors
Available tags to use within Solidcommerce
Although Solidcommerce offers a Pick List, it doesn’t allow you to customize the look and feel of it. Since this is typically just used by the warehouse, it isn’t a big issue that you cannot customize the look and feel.
Printing a Pick List