Consecutive number beside regular Serial Number

Hello,

HikaSerial have a plugin called "series generator" which generate successive numbers.
But if you use that generator, it would mean that your serial data won't be a random content anymore.

I'm not sure that you want to use that generator, specially when the content you want to add in your e-ticket is very specific.
Regarding your needs, I'm afraid that some custom development would be required in order to have something to extend the generation of the e-ticket (and add some content depending a value) ; and maybe a custom plugin to store some data in the "serial extra data" (for the counter you want to add).

The HikaSerial structure is flexible and will allow you to store the data and to customize. But by default there is not the specific feature you're looking for.

Regards,