How to change Game Settings in an ongoing save?

[ButeHole]

I'm trying to change Game Settings for my save as I've made quite a bit of progress in it and don't want to have to restart just to change 2 sliders. The sliders I'm trying to change are the Apartment Capacity Modifier and the Commercial Building Capacity Modifier. I am trying to increase the modifier so that those buildings have more capacity as I am currently having to constantly place new apartment and commercial buildings to meet demand and it's becoming too tedious.

Is there a method to change Game Settings within the game or will I need to edit the save files? Or run a script and figure out how to activate that on an ongoing save? Is there any way to change the Game Settings without having to start a new save? If I have to go into the files to change it, which files should I be looking into and what do I need to look for in these? I've tried to open the Save files. From my limited research, I've found that .sav files are opened with software like PSPP which I've tried but the file doesn't show up or anything in the app when I open it so I'm at a loss as to how to edit these files.
EDIT: I forgot to mention that I did try a Hex Editor but I have 0 experience with Hex Editors so I am pretty much at a loss as to what to do.

[Stylesjl]

As far as I know, this cannot be changed.

It may or may not be possible to change the display of the settings in game via a hex editor (I don't know how to do this) but I don't think that will actually affect the actual capacity modifier.