diff --git a/doc/salome/gui/SMESH/images/meshexportgroupwarning.png b/doc/salome/gui/SMESH/images/meshexportgroupwarning.png
new file mode 100644
index 000000000..613cd463b
Binary files /dev/null and b/doc/salome/gui/SMESH/images/meshexportgroupwarning.png differ
diff --git a/doc/salome/gui/SMESH/images/pref21.png b/doc/salome/gui/SMESH/images/pref21.png
index 7fb82e4d0..04bacf393 100755
Binary files a/doc/salome/gui/SMESH/images/pref21.png and b/doc/salome/gui/SMESH/images/pref21.png differ
diff --git a/doc/salome/gui/SMESH/input/importing_exporting_meshes.doc b/doc/salome/gui/SMESH/input/importing_exporting_meshes.doc
index b8951f00a..0cfb6d058 100644
--- a/doc/salome/gui/SMESH/input/importing_exporting_meshes.doc
+++ b/doc/salome/gui/SMESH/input/importing_exporting_meshes.doc
@@ -38,6 +38,14 @@ group as a whole mesh.
 
 \image html meshexportmesh.png
 
+ If you try to export a group, the warning will be shown:
+\image html meshexportgroupwarning.png
+<ul>
+  <li><b>Don't show this warning anymore</b> check-box specifies show or
+  not the warning. If checked, the warning will not be shown anymore in 
+  the similar situation  </li>
+</ul>
+
  There are additional parameters available at export to MED and SAUV format files.
 <ul>
   <li><b>Automatically create groups</b> check-box specifies whether to
diff --git a/doc/salome/gui/SMESH/input/mesh_preferences.doc b/doc/salome/gui/SMESH/input/mesh_preferences.doc
index 26efbe272..9a0d7994f 100644
--- a/doc/salome/gui/SMESH/input/mesh_preferences.doc
+++ b/doc/salome/gui/SMESH/input/mesh_preferences.doc
@@ -52,6 +52,8 @@ or in later sessions with this module according to the preferences.
 - <b>Mesh export</b>
   - If you toggle <b>Automatically create groups for MED export</b> check-box,
     this operation will be carried out automatically.
+  - <b>Show warning when exporting group</b> check-box - allows defining the 
+    behavior of the warning when exporting a group.
 
 - <b>Mesh computation</b>
   - <b>Show a computation result notification</b> combo-box allows to