Altova Mapforce Expert Required

I have a CSV file, and I'm converting the contents to an XML Schema. I have most of it done, but I'm struggling at one stage. The CSV is split by comma, but within one of the fields, I need to split it further by _ So my field is 3703_9404 I've managed to split this using tokenize and then point the field both to <Item> and <TariffCode> But I can't do the same with <NetMassKgs> .... I can only point one field to the <Item> <ns2:Items> <ns2:Item> <ns2:TariffCode>3703</ns2:TariffCode> <ns2:NetMassKgs>14000</ns2:NetMassKgs> <ns2:NetMassKgs>4000</ns2:NetMassKgs> </ns2:Item> <ns2:Item> <ns2:TariffCode>9404</ns2:TariffCode> <ns2:NetMassKgs>14000</ns2:NetMassKgs> <ns2:NetMassKgs>4000</ns2:NetMassKgs> </ns2:Item> </ns2:Items> Can anyone help me with this?? I would need this to look like <ns2:Items> <ns2:Item> <ns2:TariffCode>3703</ns2:TariffCode> <ns2:NetMassKgs>14000</ns2:NetMassKgs> </ns2:Item> <ns2:Item> <ns2:TariffCode>9404</ns2:TariffCode> <ns2:NetMassKgs>4000</ns2:NetMassKgs> </ns2:Item> </ns2:Items> I can explain this better with you over Microsoft Teams if you like?? Thanks