LispWorks for Macintosh supports two different graphical interfaces. Most users choose the native Mac OS X GUI, but you can use the Motif GUI instead.
Different executables and supporting files are supplied for the two options. You need to decide at installation time which of the GUIs you will be using, or decide to install support for both. If you install just one GUI option and later decide to install the other GUI option, you can simply run the installer again.
LispWorks for Macintosh Personal Edition supports only the native Mac OS X GUI.