About Tag to FIXML

Imported from previous forum

cause
the FIXML Schema, and FIXimate are “generated” from the FIX Repository.

I am wondering how can I translate the tag ClOrdID in msg(Email) to FIXML @ClOrdID but in msg(NewOrderSingle) to FIXML “@ID” base only on
FIX Specification Repository.

The FIXimate has this kind of translation. But when i parse the MsgContents.xml i got the problem.

Is there anyone can help me to solve this problem?