Having the horizontal hold "off" on a CRT when there is a perfectly good adjustment screw in back (since TV's came widely available in the 1950's) seems like a perfectly valid reason to get another monitor that needs a $1.50 USD switch placed to turn that one off & on. It not like you can get your butler or even the serfs out in the field to come into the Big House and fix things that require even a tiny amount of a modicum of minor effort.
Perhaps the chauffeur, after polishing the Bentley, could lend a nail file to the effort.