im using Standalone v2.0 :D
i have octane for maya plug-in license, but plugin version(current v1.5) cannot use Displacement

diaplacement map is simple, `displace` option in octane shader, just Displacement option click, link `grayscale image`(gray texture)and control `Height` value
be careful ...

Hello, i`m octane beginner
just a study how to use renderer
sorry my english

Thank you very much