Just because you don't use the size over 100% in big size, doesn't mean other people don't.
That is irrelevant to my point which was that I, and I think most people, do not
change that or any other setting very often. If they do then the better thing to do is to ask for an even more accessible control grouped with the icons at the bottom right corner of the window - as it happens I would love to see a size control there and I would use it.
To put it another way, I would like to see a one click access to the size control rather than a one click access to the settings page which has to be followed by moveing down down to and changing the setting followed by going back to where you started from which is what you were asking for.
Settings should not be things that are frequently changed, if they are then they should be moved to be, or be supplemented by, active controls. Reducing the access to the settings page to a single click would only paper over the wart in the GUI design rather than fix it.