Edit menu > Object Properties > Object Properties dialog > User Defined panel
Select object or objects. > Right-click. > Transform (lower-right) quadrant of the quad menu > Properties > Object Properties
dialog > User Defined panel
Layer manager > Click the icon next to an object's name. > Object Properties dialog > User Defined panel
This panel of the Object Properties dialog lets you enter properties or comments that you define yourself.
URL—This field lets you assign a URL to the selected object. This does not affect the object in any way; it is only for reference.
User Defined Properties—In this text box, you can enter properties for the object, or comments about it, that you define yourself. Autodesk VIZ doesn't use these properties, but it saves them with the scene, and they reappear whenever you view the Object Properties dialog for the object.