Blueprint Library
Errant Landscape functionality can be expanded using Editor Utility Blueprints.
caution
Since Errant Landscape is an editor plugin, you shouldn't use standard, runtime blueprints, instead you will need to create one of Editor Utility Blueprints.
If you are new to Editor Utility Blueprints, Epic provides a documentation for scripting Editor using blueprints, there is also a great Tutorial on ArtStation
A lot of our asset properties are exposed for use with blueprints,
aside from that we expose necessary functions for blueprint scripting,
you can find them under Errant Landscape
category in blueprint editor.