Hello,
The current free shipping plugin provided in HikaShop packages do not support the generation of shipping labels.
But that feature is something which is more and more asked and we do have in our TODO list some tasks to improve the shipping core of HikaShop in order to make that shipping label edition easier for plugins.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.