This setting was added in Profound.js version 6.1.0
This setting is used for integration of Profound.js and Profound UI. The setting allows the Profound UI user data files (directory /profoundui/userdata) to be stored in an alternate location. You can specify either an absolute path, or a path relative to the product installation directory.
The directory need not contain a complete copy of the Profound UI user data files. Any missing files will be served from staticFilesDirectory (if present and if it contains /profoundui/userdata) or from a copy of the files bundled with Profound.js.
Example
"userdataDirectory": "/home/ronald/puiUserData"
Click here for information on how to modify this setting.