Monte Carlo over design variable sweep in ADE XL

I am using virtuoso version 6.1.8

I am trying to do monte carlo simulation over a circuit. But to get the output, I need to sweep design variable.

Basically I need to sweep the design_variable and the output I intend to obtain is output(design_variable=1) - output(design_variable=0) and so on. I do this by creating an expression with EvalType("corners") so it is evaluated once after the sweep is complete.

I have also read several forum posts that says ADE XL Monte Carlo only supports measurement over corners, so I created 65 different corners each with different input.

Then I retrieve the output of each corner using leafValue(VT() "design_variable" ValueAtEachCorner) and use it as part of the output expression.

But when I do monte carlo on that, I get the plot of each output expression across mc_paramset instead of scalar value such as mean, stdev, max, min.

Technically, I can save the plot as csv and calculate mean, stdev, max, min and anything else I need. But are there other ways to do it? Perhaps using OCEAN script measurement?

Also, using leafValue() to retrieve the output of each corner does work, but are there better ways to get output result that needs design_variable sweep?