You can use the following index commands to change field values or delete fields in the DIH's child IDOL servers:
|DRECHANGEMETA||Changes documents' meta fields.|
|DREREPLACE||Changes documents' field values, or deletes fields.|
|DRETAGDOCCLUSTERS||Allows you to tag documents that are conceptually similar.|
Note that index commands are case sensitive and can only be issued by IndexClients. All index commands must be sent to the DIH's DIHPort.