For Node Manager, you use the copyConfig, extractMovePlan, and pasteConfig scripts to copy the configuration.
Read -> Fusion Middleware Administrator's Guide - Section 20 Using the movement scripts.
https://docs.oracle.com/cd/E23943_01/core.1111/e10105/clone.htm#ASADMYou will see the details about everything including nodemanager in FMW Administrator's Guide.