How can I request (programmatically or otherwise) the display of more Dataset columns?
For example, this command displays only 10 of the 13 columns of the dataset:
ds = ResourcedFunction["ExampleDataset"][{"Statistics", "LakeMeadLevels"}]
Can I get Mathematica to show, say, at most 20 dataset columns?
I can "force" the display of all columns (and rows) with the function
GridTableForm from the Wolfram Function Repository:
ResourceFunction["GridTableForm"][Normal@ds[Values], TableHeadings -> Normal[Keys[ds[[1]]]]]
I am looking for a (concise) Dataset solution.
I know there are (multiple) MSE questions/answers about showing more dataset rows. I hope similar solutions exist about columns.

Dataset[ds, MaxItems -> {Automatic, All}]$\endgroup$MaxItemsis linked in 'Dataset`'s function page.) $\endgroup$Dataset.) So, I think having an "increased Dataset columns" question with an answer is useful. $\endgroup$