diff --git a/components/nifosg/nifloader.cpp b/components/nifosg/nifloader.cpp
index b41bc075f..6a2523120 100644
--- a/components/nifosg/nifloader.cpp
+++ b/components/nifosg/nifloader.cpp
@@ -503,7 +503,6 @@ namespace NifOsg
                     const Nif::NiStringExtraData *sd = static_cast<const Nif::NiStringExtraData*>(e.getPtr());
                     // String markers may contain important information
                     // affecting the entire subtree of this obj
-                    // TODO: implement show markers flag
                     if(sd->string == "MRK" && !mShowMarkers)
                     {
                         // Marker objects. These meshes are only visible in the editor.
diff --git a/components/nifosg/nifloader.hpp b/components/nifosg/nifloader.hpp
index d38b88f97..43eb8da78 100644
--- a/components/nifosg/nifloader.hpp
+++ b/components/nifosg/nifloader.hpp
@@ -19,6 +19,8 @@ namespace NifOsg
     typedef std::multimap<float,std::string> TextKeyMap;
 
     /// The main class responsible for loading NIF files into an OSG-Scenegraph.
+    /// @par This scene graph is self-contained and can be cloned using osg::clone if desired. Particle emitters
+    ///      and programs hold a pointer to their ParticleSystem, which would need to be manually updated when cloning.
     class Loader
     {
     public: