New answers tagged window-manager
Additionally to using gsettings and instead of using the deprecated gconf-editor, you can install the newer dconf-editor and find and change relevant keys there. Searching "resize with" will find its key regardless of used WM.
Have you try out "Maximus Two": https://extensions.gnome.org/extension/844/maximus-two/? I was looking for the same thing and come across this. I'm using it now on Ubuntu Gnome 15.04 with Gnome 3.14.4 and it seems working fine.
From startx(1) - Linux man page: The startx script is a front end to xinit that provides a somewhat nicer user interface for running a single session of the X Window System. It is often run with no arguments. And this is where it came from. (link) It runs an XServer and a window manager. The details are too long so I'll give links. It's actually ...
I haven't tried, but I suggest looking at twm or one of its derivatives for a simple, old-school stacking window manager. Or you may try a flexible, scriptable, but not invasive stacking window manager such as Fvwm or Sawfish.
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