Advanced Feature - Add Variable 

You may add additional Variables to your job.  These can be copies of your original variable or you may edit all the properties of the variable. 

Press the V button or the add button to select a new variable.  The default is to add a copy of your original variable.  If this is what you want to add just press Save.

If you want to add a different variable uncheck the checkbox and the variable properties are displayed.

All of the original properties are displayed and all can be changed as shown below.