How to make the new group in list? Thank you so much!

Hello all…
I want to make the new group in this list. Can you help me make it? Thank you very much!!!


do you want to copy or move the number to 3 List ?

Can you explain the logic please?

I’m not sure to understand what you are trying to do, but you can use a bit of designscript to get the list you need.

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Most times it is easyer to create a new list, instead of changing the old list.
Pls explain your goal and show us more of your dynamo graph.

Yess Sir! My opinion is… auto duplicate the different beams. (different length, width, high) and set new name for them. Thank you!!!