Assigning sequencial number

Revit
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1

Hello,
I created a dynamo script to assign sequential number to elements in revit, but the way it’s done now, I need to see how many elements there are and then input the number to code block and then unfreeze the “set parameter” node.
Is there a way to make automatic count +1 ? Thanks!

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2

Just use a List.Count node for the elements

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3

Thanks!
It seems to work, but what if you have more items than alphabet letters?

4

That was just an example. You can have any number of elements and get a sequence for them.

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5

Oh, sorry I’m a newbie, thanks a lot!