Here you can select the dimensions and dimension values you want to show as columns in the Analysis by Dimensions window. This gives you the ability to see the same dimension information from various perspectives, especially when you use the Show as Columns field together with the Show as Lines field.
You can select the dimension that should be shown as columns from the following:
Up to four dimensions from the analysis view selected in the Analysis View Code field.
Business Unit
G/L Account
Period
To see the available dimensions, click the AssistButton to the right of the field.