This appendix contains a short introduction how to obtain, compile and customize the program KUPLOT. For convenience, KUPLOT is distributed as part of the diffuse scattering software package DISCUS which consists of the three programs DISCUS itself, the plot program PDFFIT and the program described here KUPLOT. However, KUPLOT is also available in a stand-alone distribution. We assume that you install the software on a UNIX type platform. In order to install the programs a FORTRAN and C compiler are required. The GNU compilers gcc and g77 used in the development of the programs are available for various platforms and can be downloaded from the Internet free of charge. However, the source code might be successfully compiled on other platforms.