Geniki Metaforiki offers an excellent tool for dispatching orders. You may download it from print.taxydromiki.gr and ease your life a bit.
Since Print tool of Geniki Taxidromiki is accepting import and export we have create this addon to help you managing your Shopify orders.
You simple select the orders you want to send, click the download button and import the xml at print tool of Geniki Taxidromiki
After you have printed the labels you may export the tracking numbers into csv and upload them to Shopify.