How to track progress using Hours per Day in My Tasks?

Since Service Pack 1 of Project Server 2007 users have the ability to track progress by “hours per day” as shown below:

Standard My Tasks web part settings	My Task web part with Hours per Day activated

To do that you will have to activate the Hours per day setting of the My Tasks web part (edit page (need to be admin) –> Edit –> Modify Shared Web Part –> Project Web Access –> check hours per day) :