How to switch workspace with mouse wheel in Unity

I had this feature in 11.10 after using a tweak by Ubuntu tweak. The new version for 12.04 seems not to have this tweak. How can I get this tweak?

You can achieve that with CompizConfig Settings Manager.

Install CompizConfig Settings Manager:

Hit Alt+Ctrl+T to open terminal and run following command:

sudo apt-get install compizconfig-settings-manager

Or search for "compizconfig-settings-manager" in Software Center and install it from there.

How to set it up?

• Once installed, Hit Super key (Windows key) to open Unity dash and search for "ccsm" and open it.
• Navigate to Desktop > Viewport Swicher

• Goto "Desktop-based Viewport Switching"
• Enable and set "Move Next" to button 5, And "Move Prev" to button 4.

That's It!

I just installed Ubuntu 15.04, and I found a better way (at least for me) than the Move Next / Move Prev described by Basharat Sialvi, still using the CompizConfig Settings Manager that he suggested: in the Desktop Wall page, in the tab Edge Flipping, enable Edge Flip Pointer to switch to the next viewport.