Cumulative sum of sublists

Hi,
I was playing with cumulative sum of list and it works great. However with sublists (or more than one list) it’s not that easy - I can’t force it pair respective lists - see sketch .
Any help will be appreciated.

Regards
Przemek

If I understood you correctly, you can have a look at the Lunchbox package and the node shown in the pic below:

One liner:

5 Likes

Guys, thank’s a milion ! That does the trick !

Nice! :slight_smile: