diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/Dict.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/Dict.java
index 67a6d146aeb1bbf7e1ef84e1dad5b90c1da1fa38..5f7224b2a57c89876a68a310e36fca7045b6fb75 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/Dict.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/Dict.java
@@ -897,8 +897,16 @@ public abstract class Dict
 
     public static final String MAIN_DATA_SET_PATH = "main_data_set_path";
 
+    public static final String MAIN_DATA_SET_PATH_TOOLTIP = "main_data_set_path_tooltip";
+
+    public static final String MAIN_DATA_SET_PATH_EXAMPLE = "main_data_set_path_example";
+
     public static final String MAIN_DATA_SET_PATTERN = "main_data_set_pattern";
 
+    public static final String MAIN_DATA_SET_PATTERN_TOOLTIP = "main_data_set_pattern_tooltip";
+
+    public static final String MAIN_DATA_SET_PATTERN_EXAMPLE = "main_data_set_pattern_example";
+
     public static final String AUTO_RESOLVE_LABEL = "auto_resolve_label";
 
     public static final String DATA_REPORT_LABEL = "data_report_label";
@@ -907,9 +915,5 @@ public abstract class Dict
 
     public static final String EXPLORE_LABEL = "explore_label";
 
-    public static final String TOOLTIP_MAIN_DATA_SET_PATTERN = "tooltip_main_data_set_pattern";
-
-    public static final String TOOLTIP_MAIN_DATA_SET_PATH = "tooltip_main_data_set_path";
-
     // ----- end generic ------------------
 }
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetTypeGrid.java b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetTypeGrid.java
index a6e1c13fb08783d0710d67c4517b269fe2684c7a..d9e31b1d077f87e333b90548756819b0e59a8326 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetTypeGrid.java
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/generic/client/web/client/application/ui/data/DataSetTypeGrid.java
@@ -124,7 +124,7 @@ public class DataSetTypeGrid extends AbstractEntityTypeGrid<DataSetType>
                     descriptionField.setValueAndUnescape(dataSetType.getDescription());
                     addField(descriptionField);
 
-                    mainDataSetPatternField = createMainDataSettPatternField();
+                    mainDataSetPatternField = createMainDataSetPatternField();
                     mainDataSetPatternField.setValue(StringEscapeUtils.unescapeHtml(dataSetType
                             .getMainDataSetPattern()));
                     addField(mainDataSetPatternField);
@@ -169,7 +169,7 @@ public class DataSetTypeGrid extends AbstractEntityTypeGrid<DataSetType>
                 private TextField<String> mainDataSetPathField;
 
                 {
-                    mainDataSetPatternField = createMainDataSettPatternField();
+                    mainDataSetPatternField = createMainDataSetPatternField();
                     addField(mainDataSetPatternField);
 
                     mainDataSetPathField = createMainDataSetPathField();
@@ -196,12 +196,14 @@ public class DataSetTypeGrid extends AbstractEntityTypeGrid<DataSetType>
             };
     }
 
-    private TextField<String> createMainDataSettPatternField()
+    private TextField<String> createMainDataSetPatternField()
     {
         TextField<String> mainDataSetPatternField = new TextField<String>();
         mainDataSetPatternField.setFieldLabel(viewContext.getMessage(Dict.MAIN_DATA_SET_PATTERN));
         mainDataSetPatternField.setToolTip(viewContext
-                .getMessage(Dict.TOOLTIP_MAIN_DATA_SET_PATTERN));
+                .getMessage(Dict.MAIN_DATA_SET_PATTERN_TOOLTIP));
+        mainDataSetPatternField.setEmptyText(viewContext
+                .getMessage(Dict.MAIN_DATA_SET_PATTERN_EXAMPLE));
         return mainDataSetPatternField;
     }
 
@@ -209,7 +211,8 @@ public class DataSetTypeGrid extends AbstractEntityTypeGrid<DataSetType>
     {
         TextField<String> mainDataSetPathField = new TextField<String>();
         mainDataSetPathField.setFieldLabel(viewContext.getMessage(Dict.MAIN_DATA_SET_PATH));
-        mainDataSetPathField.setToolTip(viewContext.getMessage(Dict.TOOLTIP_MAIN_DATA_SET_PATH));
+        mainDataSetPathField.setToolTip(viewContext.getMessage(Dict.MAIN_DATA_SET_PATH_TOOLTIP));
+        mainDataSetPathField.setEmptyText(viewContext.getMessage(Dict.MAIN_DATA_SET_PATH_EXAMPLE));
         return mainDataSetPathField;
     }
 }
diff --git a/openbis/source/java/ch/systemsx/cisd/openbis/public/common-dictionary.js b/openbis/source/java/ch/systemsx/cisd/openbis/public/common-dictionary.js
index 2f6294f9dcce7e2ff170aeedf0d85002aeaa3644..f0208b6662f41cc85313e0bb130fd43d6d5101e7 100644
--- a/openbis/source/java/ch/systemsx/cisd/openbis/public/common-dictionary.js
+++ b/openbis/source/java/ch/systemsx/cisd/openbis/public/common-dictionary.js
@@ -39,9 +39,11 @@ var common = {
   add_attachment: "Add attachment",
   data_view: "Data View",
   main_data_set_path: "Main Data Set Path",
-  tooltip_main_data_set_path: "The path (relative to the top directory of a data set) that will be used as a starting point of 'main data set' lookup.\nExample: 'original/images/'",
+  main_data_set_path_tooltip: "The path (relative to the top directory of a data set) that will be used as a starting point of 'main data set' lookup.\nExample: 'original/images/'",
+  main_data_set_path_example: "for example: original/images/",
   main_data_set_pattern: "Main Data Set Pattern",
-  tooltip_main_data_set_pattern: "If there is just one data set with path matching chosen 'main data set' pattern, it will be automatically displayed.\nExample: '*.jpg'",
+  main_data_set_pattern_tooltip: "If there is just one data set with path matching chosen 'main data set' pattern, it will be automatically displayed.\nExample: '*.jpg'",
+  main_data_set_pattern_example: "for example: *.jpg",
 	auto_resolve_label: "Smart View",
 	data_report_label: "Report:",
 	explore_label: "Explore:",