Arbortext Command Language > set Command Options > set datamergepath
  
set datamergepath
set datamergepath=dir1 [:dirn]
 
This command specifies a list of directories in which data merge configuration files (.dmf) are located. These files are for customizing data merging operations. The default path is Arbortext-path\datamerge.
If there is an Arbortext-path\custom\datamerge subdirectory at startup, the \custom\datamerge path is automatically prepended to the path for data merge configuration files. Putting your .dmf files in the \custom\datamerge subdirectory makes them automatically available, avoiding manual steps to add them to the path.
Refer to the Customizer's Guide for details on configuring your site to merge data.
* 
The capability to merge data is deprecated and not an encouraged best practice supported by PTC.