Hi,
I'd like to add new shipping module with the same functionality as flat rate has, but with different shipping cost and description.
How can I hit this ? I was trying to copy flat rate and change name of class and everything with word "shipping". But KonaKart still doesn't see my new module.
Which code in flat rate I must change ?
In the documentation there is a section on how to create a payment module. You should read that section, since shipping modules have a similar architecture.