1 Display the attributes of an OLAP Dimension in the middle pane. Display the columns of the dimension in the right pane then drag over a column from the underlying relational dimension into the middle pane.

2 To add an Attribute, right-click on an OLAP Dimension in the left pane and select "Add Attribute". This can also be achieved by displaying Attributes in the middle pane, right-clicking and selecting "Add Attribute". Fill out the dialog box with the relevant details.

3 To create an Attribute that is similar to an existing Attribute, display the Attributes in the middle pane and select "Copy Attribute". The same dialog box appears as for "Add Attribute" with most of the fields filled in. Notice that the Attribute name has the suffix "- Copy". Change the name in the Attribute Name field and make any other alterations and click OK.