diff --git a/DistributionChart2D.cpp b/DistributionChart2D.cpp
index 1f34314..668f6a5 100644
--- a/DistributionChart2D.cpp
+++ b/DistributionChart2D.cpp
@@ -1,5 +1,5 @@
 #include<hgl/type/StringList.h>
-#include<hgl/type/LoadStringList.h>
+#include<hgl/io/LoadStringList.h>
 #include<hgl/type/Gradient.h>
 #include<hgl/math/Vector.h>
 #include<hgl/util/imgfmt/tga.h>
diff --git a/datatype/ram/RuntimeAssetManager.h b/datatype/ram/RuntimeAssetManager.h
index c978f8d..aa68dc4 100644
--- a/datatype/ram/RuntimeAssetManager.h
+++ b/datatype/ram/RuntimeAssetManager.h
@@ -89,4 +89,33 @@ public:
     }
 };
 
+#define HGL_RUNTIME_ASSET_CLASS(RA_ID_TYPE,_RA_CLASS)   
+
 #define HGL_RUNTIME_ASSET_DECLARATION(RA_ID_TYPE,RA_CLASS)  RuntimeAssetManager<RA_ID_TYPE,RA_CLASS> RuntimeAsset<RA_ID_TYPE,RA_CLASS>::RAM;
+
+/**
+ * Example:
+ *
+ * MyRuntimeAsset.h
+ * 
+ *      using MyAssetID=uint;
+ * 
+ *      struct MyRuntimeAsset:public RuntimeAsset<MyAssetID,MyRuntimeAsset>
+ *      {
+ *      public:
+ * 
+ *          using RuntimeAsset::RuntimeAsset;
+ *      };
+ * 
+ * MyRuntimeAsset.cpp
+ * 
+ *      #include"MyRuntimeAsset.h"
+ * 
+ *      HGL_RUNTIME_ASSET_DECLARATION(MyAssetID,MyRuntimeAsset);
+ * 
+ */
+
+
+
+
+