Duplicate fields in metadata with different values

Hello everyone,

I write from Chile, South America. I am a fan of metadata, and I want to make improvements to my clubs, to enjoy them obsessively.

I need, please, help me to work better on the following:

BASIC INFORMATION

  1. I am using the following "Format String":

%dummy%,%artist%,%album%,%track%,%title%

  1. I handle the CSV files in the following way, as in the example given on this same page:

87,Sigur Rós,Ágætis byrjun,1,Intro

ISSUES:

A. I want the track to be ordered as follows:

But if in the format string i add a duplicate field, for example:
Composer: composer 1
Composer: composer 2

Automatically it will then be seen only in one composer column, and not in 2, as in the image i showed previously (I made that one manually).

How should i correctly configure the software or the CSV so that this does not happen?

How can i make a configuration so that the format string and data are in the same CSV? Because currently i have to put the format string manually in the software, which makes the process very slow. I want to do this with more than 2,000 albums.

Thank you very much everyone, i look forward to any comments.

Nicole.