FUNCTION CONSTANT OB1 TO OB2?

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I hope someone can help me how to do this in ob2, I can’t find how to do it.

example:
N: [1, 2, 3]
Q: [ok, no, Null]

Block function constant ob1
<N [ * ]> - <P [ * ]>
Result OB1:
1 = ok
2 = no
3 = null

You cannot do this in OB2, please take a look at this Iterating on lists for an alternative way to achieve the same thing