By default, the only window in the LispWorks IDE to contain a menu bar is the parent MDI window. The menu commands in this menu bar operate on whichever window is currently the Active Window within the LispWorks IDE.
If you prefer each tool to have its own menu bar, choose Tools > Preferences... and under Environment > General > Window Options select the Separate windows with menu bars option.
If you prefer not to use MDI but to have tools sharing a single menu bar, choose Tools > Preferences... and select the Separate windows sharing a menu bar option.
The setting in Window Options will be retained for your subsequent LispWorks sessions.
Note: This manual assumes the default MDI option All windows contained within a single main window .
LispWorks IDE User Guide (Windows version) - 25 Nov 2011