Choose Code Generator from the File menu of the App Builder primary window to display the Code Generator window.
Choose Environment from the Options menu to display the Environment Options dialog box.
Type a variable in the Variable Name text field.
You might want to change PATH, for instance.
Click Get to display the current value for the variable in Variable Name.
The value of the variable will be displayed in the Value pane.
Make a change to Value and click Set to change the value of the variable.
This change is made for this App Builder session only.
Click Reset to reset Value to its value outside this session of App Builder.
Click Cancel to dismiss the dialog box.