Hello folks, I

digging a bit have found a post that helped me

thanks to @Nick_Boyts I managed to sum the element of a list by its unique parameter values.

I actually created a node that in the screenshot is In the upper side…it says “

*CombiningandSumfromaList*”[just to shorten the graphs, basically all that in green is inside this new node]

In fact i would continue doing this sum until the list is over.

So I used the node the rest of Items and to repeat the same logic.

I would rather using Python for doing but since is it a list managing problem and I would love to learn more about it how can this be achieved here?

Those sums will be then inserted into data and write to Excel [ which I know the same can be achieved easily]

Thanks.