By default, a table is pre-constructed. 
The dimensions System ID, Implementation Month/Year, Month Year loading are selected as well as the measure Unweighted total. 

Is that case it is a classic table, if you want you can click on this icon and change the table to a pivot table. 

The pre-selected dimensions and measures are not fixed, you can remove them and add new ones. To do this you have two options:

• Select the dimensions and measurements in the two sections on the left side of the screen.
• Click on the crosses of those you want to remove at the top of the table.