The Columns tab of the Index property sheet has the following components:
Columns list Shows all the columns in the index, as well as their order, either ascending or descending. You set the order when you create a new index.
The columns are sorted by their sequence, which is a unique number starting at 0. The order of the numbers determines the relative position of the columns in the index.
Details Displays the Column Details dialog, which shows a summary of the properties of the selected column.