Acquiring the Linux Extensibility documentation for Spectrum Spatial Analyst

There is no Linux Specific Extensibility documentation. The current guide describes how to use the Spectrum Spatial Analyst Extensibility platform for creating customisation only within a Windows environment.  Please note that the functionality is the same on all platforms with the only difference being the directory structure in Linux.
Environment Details
Product Affected: Spectrum Spatial Analyst

UPDATED:  December 7, 2018