Hi,
By default, that is not possible with HikaSerial.
There are views in HikaSerial which are used to be display in the HikaShop order (in the front-end, in the emails).
You can customize these views in order to have a different display.
You can also customize these views in order to not display the serials if you have more than X elements.
But it will require a custom plugin in order to handle the other way to get the serials.
For sure you can develop a way to provide a zip with the serials for the customer ; display a link in the HikaShop order or add that zip in attachment in the emails. That is possible but it require custom development.
I have to admit that I didn't think that HikaSerial will be use in such conditions ; that's why the design for displaying the serials is simple.
Next HikaSerial release will have a new view to display the listing of user serials. The development is almost finish but with the absence of Nicolas ; I have a lot less time that usual to be able to work on my components. So it will be available in few weeks.
Maybe it could be a solution for you ; instead of displaying the serial there you can use the serial listing (which have a pagination).
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.