Column List Dialog Box (Visual Database Tools)
When writing queries, it can be useful to see a list of columns available in your selected table-valued objects.
To access this dialog box, from the Query Designer menu, in the Diagram pane right-click the header of a table-valued object, and then click Properties. In the Properties window, click the Column List field. Then click the ellipses (…) to the right of the field.
This dialog box provides a list of the columns in the selected table-valued object and basic properties, such as data types and whether the columns allow null values.