Hi there! Thanks so much for your feedback on how we can improve ShipStation for your business. We look here to learn about common obstacles for our users so we can work on solutions.
After reading many of the responses, it appears that one of the underlying needs described was to print labels on a 4×6 thermal printer and packing slips on an 8.5×11 printer, which you can now accomplish in ShipStation. http://feedback.shipstation.com/forums/126593-request-a-new-shipstation-feature/suggestions/4446885-print-thermal-shipping-labels-in-conjunction-with
Since you’re asking for the ability to have one button for this function, we’ll leave this request open. Can you give us more detail about about your current workflow and what’s the hardest part not having a button that prints both labels/packing slips simultaneously vs two buttons?
Can you post the correct url or put the procedure here to print packing slip and shipping label simultaneously?