You can use AgStudio to edit the farm and field structure of an operation by editing the Domain Tree. You can create new farms and fields, or move fields between farms.
To add a new Farm:
To add a new field:
To Rename a Farm or Field
To Transfer a Field to a new Farm
Related Articles:How do I split a field boundary in AgStudio?How do I remove sections of a field boundary in AgStudio?How do I remove holes from a field boundary in AgStudio?
How do I import shapefile boundaries into AgStudio?How do I draw boundaries around unlinked data?How do I auto-build boundaries from machine data?