This opinion is never popular because for some reason developers seem to be dead afraid of asking their user's output.
What I would do is add a dialog the first time the user press CTRL+F. Asks if the user wants the default or the override. Save this in a cookie or in the database.
What I would do is add a dialog the first time the user press CTRL+F. Asks if the user wants the default or the override. Save this in a cookie or in the database.