The default window movement key (alt) conflicts with several programs that I use fairly often. I'm sure some users find this key binding useful but I really need to change it to something else so that I can be productive.
I looked in the most logical place:
System Settings > Keyboard > Shortcuts (Tab) > Windows
While there is a 'Move Window' item listed it appears to be an additional way to move windows. Where can I change the key that is bound to the following combination:
depress (and hold) alt key + left mouse button click
I'm using Unity 2D with metacity. The Compiz plugin solution referred to in similar questions will not help me.
Here is a screenshot of the old 11.04 Window Preferences illustrating what I'm trying to do: