Delimited flat file with tag id not at beginning

Hi,

I have a problem building a flatfile schema (using the wizard) for a 
delimited file where the tag identifier is not the first field, but the 
second. I get an error in the wizard and I haven't been able to solve it 
without the wizard.

The 2 different records look like this:
7018;Item;Add;60013122;Lyre Bic Lady;;06012
7018;Barcode;Add;7310011822922;60013122;Lyre Bic 

The first record is identified by Item and the second by Barcode. 7018 is 
never the same so I can't include that.

Does anyone know a solution to this?

Best regards,
Jesper