The Object Clipboard is used to manage multiple Lisp objects. You can select any object in the Object Clipboard for use in paste operations.
As an example of adding a Lisp object to the Object Clipboard, follow these steps:
The value from the Listener is now in the Object Clipboard.
If you have not already made an Object Clipboard visible, then do so now using the menu command Tools > Object Clipboard .
The Object Clipboard can be seen in Object Clipboard Tool.
Figure 1.1 Object Clipboard Tool
You can use the left mouse button to select any item in the Object Clipboard, then use the context menu (usually invoked by the right mouse button) to inspect, inspect class, open a Listener, or copy the object.
LispWorks IDE User Guide (Windows version) - 25 Nov 2011