Multiple Webstores - Custom Packing lists

I have both and Ebay and Amazon account that I need to ship from. The setup process was a breeze and everything looks good - expect that I cant customize the packing slip template individually for each store. Amazon has different return/shipping procedures than ebay, and I need to add this information a packing slip for amazon orders, but not for ebay orders.

If there a function that I am not seeing? If not - I recommend implementing this feature for customers with multiple webstores. I may not be able to use shiprush due to this.

ThankS!