Hello,
You can't do that easily ; it would require a specific organisation and some custom configuration.
It might be possible to imagine a "mass action" which would load CSV generated and uploaded in the server ; but you can be sure that it will require a lot of time to affine your organisation and be sure that all "offline" store will follow the guideline.
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.