Select Add Part to retrieve a part directly from the class hierarchy, whether or not it is represented on the parts palette, and drop it on the free-form surface. The class hierarchy includes all VA Smalltalk supplied parts, plus any visual or nonvisual part that you have created (with the name you provided when you created it).

You can use this window instead of the parts palette to add parts. When you create a part that you will use once or twice, it is easier to use this window than the parts palette to add the part to an application. To add the part, specify the name of the class that represents the part. You can use the Browse button if you do not remember the exact class name.