Hi,
For what I can understand of your request ; I don't see (know) any tool capable of that and you'll need to see for a custom development (with a detailed specification document).
HikaSerial is a unique content generator which will mostly be use to assign serial (unique content) to users when they made purchases in the store.
The tool is flexible and allow to do a lot of other things ; but his workflow "[event] => generate => assign => consume" stay as central point in the software.
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.