2.4.7. Define User Environment variables
The Configuration Variables view allows you to assign default values to the XML variables.
To add a new Configuration Variable to your model, click the 
button while Configuration Variables is selected or right-click Configuration
Variables in the tree and select Add Variable…:
A pop-up window appears, where you can enter the Configuration Variable name, and the value of the variable:
When a Configuration Variable is added, it displays in the Structured view:
