diff --git a/src/Mod/Part/Gui/ViewProviderExt.cpp b/src/Mod/Part/Gui/ViewProviderExt.cpp
index c9589b8b8a..f3df91ade2 100644
--- a/src/Mod/Part/Gui/ViewProviderExt.cpp
+++ b/src/Mod/Part/Gui/ViewProviderExt.cpp
@@ -254,6 +254,8 @@ ViewProviderPartExt::ViewProviderPartExt()
     lowerLimit = std::max(lowerLimit, Precision::Confusion());
     tessRange.LowerBound = lowerLimit;
 
+    static const char *osgroup = "Object Style";
+
     App::Material mat;
     mat.ambientColor.set(0.2f,0.2f,0.2f);
     mat.diffuseColor.set(r,g,b);
@@ -261,24 +263,30 @@ ViewProviderPartExt::ViewProviderPartExt()
     mat.emissiveColor.set(0.0f,0.0f,0.0f);
     mat.shininess = 1.0f;
     mat.transparency = 0.0f;
-    ADD_PROPERTY(LineMaterial,(mat));
-    ADD_PROPERTY(PointMaterial,(mat));
-    ADD_PROPERTY(LineColor,(mat.diffuseColor));
-    ADD_PROPERTY(PointColor,(mat.diffuseColor));
-    ADD_PROPERTY(PointColorArray, (PointColor.getValue()));
-    ADD_PROPERTY(DiffuseColor,(ShapeColor.getValue()));
-    ADD_PROPERTY(LineColorArray,(LineColor.getValue()));
-    ADD_PROPERTY(LineWidth,(lwidth));
+    ADD_PROPERTY_TYPE(LineMaterial,(mat), osgroup, App::Prop_None, "Object line material.");
+    ADD_PROPERTY_TYPE(PointMaterial,(mat), osgroup, App::Prop_None, "Object point material.");
+    ADD_PROPERTY_TYPE(LineColor, (mat.diffuseColor), osgroup, App::Prop_None, "Set object line color.");
+    ADD_PROPERTY_TYPE(PointColor, (mat.diffuseColor), osgroup, App::Prop_None, "Set object point color");
+    ADD_PROPERTY_TYPE(PointColorArray, (PointColor.getValue()), osgroup, App::Prop_None, "Object point color array.");
+    ADD_PROPERTY_TYPE(DiffuseColor,(ShapeColor.getValue()), osgroup, App::Prop_None, "Object diffuse color.");
+    ADD_PROPERTY_TYPE(LineColorArray,(LineColor.getValue()), osgroup, App::Prop_None, "Object line color array.");
+    ADD_PROPERTY_TYPE(LineWidth,(lwidth), osgroup, App::Prop_None, "Set object line width.");
     LineWidth.setConstraints(&sizeRange);
     PointSize.setConstraints(&sizeRange);
-    ADD_PROPERTY(PointSize,(psize));
-    ADD_PROPERTY(Deviation,(0.5f));
+    ADD_PROPERTY_TYPE(PointSize,(psize), osgroup, App::Prop_None, "Set object point size.");
+    ADD_PROPERTY_TYPE(Deviation,(0.5f), osgroup, App::Prop_None,
+            "Sets the accuracy of the polygonal representation of the model\n"
+            "in the 3D view (tessellation). Lower values indicate better quality.\n"
+            "The value is in percent of object's size.");
     Deviation.setConstraints(&tessRange);
-    ADD_PROPERTY(AngularDeflection,(28.65));
+    ADD_PROPERTY_TYPE(AngularDeflection,(28.65), osgroup, App::Prop_None,
+            "Specify how finely to generate the mesh for rendering on screen or when exporting.\n"
+            "The default value is 28.5 degrees, or 0.5 radians. The smaller the value\n"
+            "the smoother the appearance in the 3D view, and the finer the mesh that will be exported.");
     AngularDeflection.setConstraints(&angDeflectionRange);
-    ADD_PROPERTY(Lighting,(twoside));
+    ADD_PROPERTY_TYPE(Lighting,(twoside), osgroup, App::Prop_None, "Set object lighting.");
     Lighting.setEnums(LightingEnums);
-    ADD_PROPERTY(DrawStyle,((long int)0));
+    ADD_PROPERTY_TYPE(DrawStyle,((long int)0), osgroup, App::Prop_None, "Defines the style of the edges in the 3D view.");
     DrawStyle.setEnums(DrawStyleEnums);
 
     coords = new SoCoordinate3();