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I have a Dataset of states and I need to modify a variable: States = Dataset[{<|"StateId" -> {Bt, 1, 1.15, q}, "B" -> Bt, "RC" -> "n", "Es" -> "n", "NC" -> Null,"e" -> N123|>}]

As of now I'm able to modify an entrance, for example "e" with this code: States = States[All, If[#StateId == {Bt, 1, 1.15, 2}, <|#, "e" -> "New element"|>, #] &].

I was wondering if there is a way to take the previous element: N123 in my case, and adding 1 (or other simple operations) so that I get N123+1 in the entrance "e", without using a Query.

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States = States[All, If[#StateId == {Bt, 1, 1.15, 2}, <|#, "e" -> #e+1|>, #]&] works.

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