Don't want category column in mail lists

Running 10.0.2382. I don’t want the category column in the mail lists. I know I can disable it individually for each folder, but is there an general switch to disable the column in all my mail lists?
I have disabled the “Show Categories” in Settings → E-Mail, but that is obviously not what I am looking for…

OK. Found it. Closed.

Where did you find it?

Just go to Inbox, configure the columns and then apply that to all other email folders, using Gary’s “secret option” as described in:

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