[Koha] About the "Display Order" column in Serial module

[teertha chatterjee]

Hi
I am trying to setup serial control on koha 19.11.12
The manual says "Display Order" is important for managing the frequencies
of issue.
I'm unable to understand "What is the exact purpose and functionality of
this column?"
can someone please help me or point me other documentation that I can go
through to clear my question.

Thanks in anticipation,

Teertha