Adding consecutive index of a list

[saju_autodesk]

Is there a node to do it?

[Vikram_Subbaiah]

List.Scan, but there are other ways that would require more than just a node

[YashRathore]

Thank you so so much for the alternate method as well @Vikram_Subbaiah!! I couldn’t figure out getting the desired result with List.Scan for a list with three layers of nesting, but your other method worked like a charm in my case.

[danbush]

Is there an option for processing multi-level lists?