Creating an LCOE vs Inverter Cost Graph

I am trying to graph a scatter plot of inverter cost and LCOE Real in SAM 2014.11.24. In the "graphs" section, not only is "inverter cost" not listed as a variable, but I cannot get the program to distinguish between X and Y variables. What is the best way to solve my problem and output the graph I wish to create?
The inverter cost is an input on the System Costs page, and only has a single value. That is why it is not available as a variable in graphs. To create a graph showing LCOE vs inverter cost (or any other input variable), you can use parametric simulations. Here's an example showing results for a parametric simulation on inverter coset with LCOE as the output metric. (See Help for instructions on how to set up parametric simulations.)

Best regards,

Paul.