I suggest that Tableau allow users to highlight columns in the Data Source with custom colors. Currently, colors are automatically applied to the column headers based on which table the column belongs to. That's helpful to an extent, but I would like to be able to highlight specific columns so that I, or someone else, can easily find them.
While I'm at it, it would also be helpful to be able to click and drag to re-order columns in the Data Source.
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