To add a new project property

On the ribbon, click Home tab Project panel Project Manager Project Setup.
In the Project Setup tree view, expand General Settings. Click Project Details.
On the Project Details pane, under General Properties, do any of the following:
- In the Project Description box, add or change the project description.
- In the Project Number box, add a project number.
Note:
The Project Name was set when the project was created. You cannot edit this name.
Under Custom Properties, in the Custom Categories list, click Project Data.
Click Add Row.
In the Add Row dialog box, enter a name (for example: Lead designer) and a value (for example: Rich Robins) for the new property.