From the screenshot it looks correct. You are feeding MassAddition 496 lists of two numbers each, and the output of MassAddition.R is 496 lists of one number each (the sum total) and MassAddition.Pr is 496 lists of two numbers each (all intermediate addition results).
Thanks for the quick fix and the very useful feature. I'm not sure if this was your intention and you might have changed it since, but I just discovered any Escape press aborts the Grasshoppper solver, even if focus at the time was in another instance of Rhino or a browser window, etc.
Hello David,
As usual, another great release! The focusing on selected objects is a great step...also, adding 'set to default' to groups is nice. Could we also have that for panels?