MPOS 8.1 Receipt Alignment Customization Using Hardware Station.

Hi All,
I hope you are doing well,
I need to get Help in MPOS 8.1 Receipt Alignment Customization.
how it is possible ?
I need to write Code in hardware station but i couldn't find any proper place that looks like Peripheral Project (Print_doc   function Retail POS).
your Suggestion should be highly appreciated.
Regards,