Drawing complex geometry in MCNP can be achieved primarily by importing CAD drawings into the visual editor. Users seeking guidance on this process can benefit from tutorials that explain the steps involved in importing and manipulating CAD files. It's important to ensure that the CAD model is compatible with MCNP's requirements for geometry representation. Additionally, participants in the discussion may share specific resources or links to tutorials that facilitate this process. Understanding these methods is crucial for effectively modeling complex geometries in MCNP.