Is there a locate_columns() function?

[T-Engel]

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Thanks for this great package. It works well for me.
I would like to use the columns argument in extract_tables() but I don't really know how to find the coordinates separating my columns. It would be great if you could implement a function similar to locate_areas() that instead of defining the areas of the tables allows the user to determine the coordinates separating columns. Are there any plans for implementing this functionality?