...
Set an internal name (60 characters max.) and a code (8 characters max.) to your mapping table.
Seat categories tab
Then the idea is to define "I've got a physical category 1. If i'm in an event in my logical conf A, what should it cFor each given physical seat category that is used in a logical configuration "A", you could define what is the corresponding seat category in a logical configuration "B".
Let's take an example: you want to sell a season ticket with events happening in 2 concert halls :
...
In order to create season ticket catory category 4, click on on 
:
And fill the following:
Seat category is the mapped category that will be used in the composed product.
...