Project 2007 Demo: Work with columns

See more Microsoft Office Project demos at http://office.microsoft.com/en-us/help/FX100485311033.aspx
Suppose you've created a project plan in Microsoft Office Project 2007, and you want to add a new column of information. You also want to be able to choose not to display the new information, but you don't want it to be lost. With Project, you can create a column of information, hide a column, and show a column that you've previously hidden.