The Definition Modifier File Element
The Definition Modifier File element is a child of the report definition's root element. The presence of a DMF element tells the Logi Server Engine to process the file it identifies. Its Definition Modifier File attribute value is the name of the actual XML file, with .xml extension. The file can be in any folder accessible to the Logi application but when a fully-qualified file path is not specified, the assumed location is the _SupportFiles folder.
If this attribute is not set, set to an empty string, or set to "1", it is considered "True".
You can use tokens to provide the DMF filename (as shown above), enabling you to specify different DMFs (or no DMF) for different situations, users, etc.