As far as I can tell compiz will only allow one keybind as you noticed.
However with a tiny bit of work you can get around this limitation!
pycompiz found here. If you have
svn you can do this using
svn checkout http://pycompiz.googlecode.com/svn/trunk/ pycompiz-read-only
Install after navigating into the projects folder,
sudo python setup.py install
Next create these two tiny python scripts, and place them in your
Then either make them executable (
chmod u+x FILENAME) or when setting the keybindings use
Lastly you can create two custom command shortcuts for each of these scripts in the custom commands section of the compiz config (ccsm), and hey presto - two keybinds to achieve the same effect. As mentioned above, if you made the scripts executable, the commands will be
putright, else they will be
python ~/bin/putleft and