I am completely new to Ubuntu 13.04 and I do not have much experience using terminal. However, I would like to assign the "zoom" button on my Performance MX mouse to show workspaces... I find the particular button worthless for actually zooming in and out. I also want to assign the "application button" to "spread windows" (at least what it is called in the unity tweak tool).
How do I go about changing these settings permanently?