You can perform a number of operations on any windows selected in the Graph area using the commands in the Works > Windows menu. If no items are selected in the Graph area, the commands in this menu apply to the root window of the graph.
The Works > Windows menu gives you access to the standard actions commands described in Performing operations on selected objects.
Choose Works > Windows > Browse Parent to display the parent of the current window. This takes you back up one level in the window hierarchy.
Choose Works > Windows > Browse Screens to examine the parent window of the environment once again - this takes you back up to the root of the window hierarchy.
There are several commands which give you control over the current window.
Choose Works > Windows > Lower to push the current window to the bottom of the pile of windows on-screen.
Choose Works > Windows > Raise to bring the current window to the front of your screen.
Choose Works > Windows > Quit to quit any windows selected in the graph.
Choose Works > Windows > Destroy to destroy any windows which are selected in the graph. You are prompted before the windows are destroyed.
LispWorks IDE User Guide (Windows version) - 13 Sep 2017