I've put up an easier-to-install version on my github here, you can install it using:

$ ./configure

$ make

$ make install

(original answer)

I believe using Taralli would allow for such a thing to happen with multiple workspaces...

There's some more info about what it is here and it seems to be what you're looking for. Compilation is easy and should work on regular rectangular screens by running

$ ./build.sh rectangular

$ # Note: if the above command fails try 'gcc -O2 -Wall -std=c99 -pedantic -o taralli_rectangular main.c map_rectangular.c -lX11 -lXi'

$ ./taralli_rectangular

$ sudo mv taralli_rectangular /usr/bin/taralli_rectangular

and then setting the binary to run on boot.

If you get the errors like:

In file included from main.c:1:0:

common.h:5:19: fatal error: X11/X.h: No such file or directory

 #include <X11/X.h>

                   ^

compilation terminated.

In file included from map_rectangular.c:1:0:

common.h:5:19: fatal error: X11/X.h: No such file or directory

 #include <X11/X.h>

                   ^

compilation terminated.

Install these dev packages:

sudo apt-get update

sudo apt-get install libx11-dev libxext-dev libxi-dev

And run the compilation steps again.