I made a script that may help in understanding WDIR settings. For new users the WDIR or working directory is often a foreign concept. It is not set in DxDesigner's settings menu. Knowing to look in the environment variables is not obvious. The confusion can be exacerbated by having a multiple WDIR values for personal and corporate settings.
This script will read in the WDIR variable for the version of the tool you are running. It will also break down the variable into the "Personal" and "Corporate" folders. Provided the user has Admin privileges to their machine, it also allows them to update the WDIR from DxDesigner. Changes will not be implemented until the tool is closed and reopened.