Hi,
Assign a product to a pack and each time a product will be bought, the product item will receive a serial from the pack.
If the pack does not have available serial, one serial will be generated using the generator assigned to the pack.
There is no need of mass action with HikaSerial.
HikaSerial have his own import system and it allows the link between products and packs.
If you want some special serial assignation, it requires a custom plugin.
Thanks to new feature of HikaSerial 1.9.0 ; it is now possible to a plugin to perform dynamic serial assignation during the order creation.
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.