First open your Wattle course site.
Click on the Administration Tab which is located on the left of your screen.
In the Administration table scroll down the list of options and click on Grades.
When you are in the Grader Report you can change the order in which your Gradebook items appear based upon your preferred option for viewing them.
To do this click on the title of the item which you wish to reorder.
The arrow direction will indicate how the items will be reordered.
You can reorder your gradebook in a number of ways.
For example, you can change the order in which your students names appear, either by ascending alphabetical order, or descending alphabetical order.
An Upward pointing arrow means to sort in an ascending alphabetical order
A Downward pointing arrow means to sort in descending alphabetical order.
Similarly, you can also reorder the grades numerically. This may be useful to find the numbers of students with the highest or lowest levels of grades in a particular assignment.
You can reorder the assignment grades either ascending, from lowest to highest grade awarded, or descending from highest to lowest grade awarded, by clicking on the ascending / descending arrows beside the title of the particular assessment item which you wish to reorder.