MegaPOV features are enabled by using:

#version unofficial megapov 1.2;  // version number may be different

The new features are disabled by default, and only the official version's syntax will be accepted. The above line of POV code must be included in every include file with MegaPOV features as well, not just the main POV file. Once the unofficial features have been enabled, they can be again disabled by using:

#version 3.6;

This is useful to allow backwards compatibility for some features.