If you want to install LispWorks with the X11/Motif GUI, choose Custom Install and select the option "LispWorks with X11/Motif IDE".
Note: to run LispWorks with the X11/Motif GUI, you will need both of these installed:
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.Neither X11 or Motif are required at the time you install LispWorks, however.
The X11/Motif GUI is not available for the Personal Edition.