We work based on winisis bases, the thing is that we don´t want
greenstone show the whole field in the record, I've seen the fdt file in
the greenstone directory, is it possible to edit this file from there,
and the changes and the database still will work fine? or it's necesary
to create a new database only with the fields that we need, is it
possible to delete the numbers that apear in the fdt file?