diff --git a/flask-app/mtw/flask.py b/flask-app/mtw/flask.py
index 49271f1..8f7c797 100644
--- a/flask-app/mtw/flask.py
+++ b/flask-app/mtw/flask.py
@@ -46,7 +46,7 @@ def __call__(self, environ, start_response):
 
 app.config.update(dict(
     APP_NAME = 'MTW',
-    APP_VER = '1.3.0',
+    APP_VER = '1.3.1',
     API_VER = '1.0.0',
     APP_URL = '/mtw',
     DEFAULT_THEME = 'slate',
@@ -942,7 +942,7 @@ def browse(top, tn, action):
 
         if request.args.get('show'):
             show = request.args.get('show').strip()
-            if show in ('all','translated','todo','scn','ntx'):
+            if show in ('all','translated','todo','scn','ntx','notpref'):
                 session['show'] = show
 
         if request.args.get('status'):
@@ -1000,7 +1000,7 @@ def search(dui, action):
 
     if request.args.get('show'):
         show = request.args.get('show').strip()
-        if show in ('all','translated','todo','scn','ntx'):
+        if show in ('all','translated','todo','scn','ntx','notpref'):
             session['sshow'] = show
 
     if request.args.get('status'):
diff --git a/flask-app/mtw/templates/snips/filters.html b/flask-app/mtw/templates/snips/filters.html
index 3fd4e51..a7d256b 100644
--- a/flask-app/mtw/templates/snips/filters.html
+++ b/flask-app/mtw/templates/snips/filters.html
@@ -6,6 +6,8 @@
         {% set SCN_CHECKED = 'checked' %}
     {% elif show == 'ntx' %}
         {% set NTX_CHECKED = 'checked' %}
+    {% elif show == 'notpref' %}
+        {% set NOTPREF_CHECKED = 'checked' %}        
     {% else %}
         {% set ALL_CHECKED = 'checked' %}
     {% endif %}
@@ -17,19 +19,19 @@
           </div>
           <div class="custom-control custom-radio custom-control-inline">
             <input type="radio" id="radioShowTodo" name="show" value="todo" class="custom-control-input" {{ TODO_CHECKED }}>
-            <label class="custom-control-label" for="radioShowTodo">ToDo</label>
-          </div>
+            <label class="custom-control-label" for="radioShowTodo" title="PrefConcepts without translated preferred term">ToDo</label>
+          </div>            
           <div class="custom-control custom-radio custom-control-inline">
             <input type="radio" id="radioShowTranslated" name="show" value="translated" class="custom-control-input" {{ OK_CHECKED }}>
-            <label class="custom-control-label text-success" for="radioShowTranslated">Translated</label>
-          </div>
+            <label class="custom-control-label text-success" for="radioShowTranslated" title="PrefConcepts with translated preferred term">Translated</label>
+          </div>                
           <div class="custom-control custom-radio custom-control-inline">
             <input type="radio" id="radioShowScopeNote" name="show" value="scn" class="custom-control-input" {{ SCN_CHECKED }}>
-            <label class="custom-control-label text-info" for="radioShowScopeNote" title="Missing translated ScopeNote">ScopeNote</label>
+            <label class="custom-control-label text-info" for="radioShowScopeNote" title="Translated PrefConcepts without translated ScopeNote">ScopeNote</label>
           </div>
           <div class="custom-control custom-radio custom-control-inline">
             <input type="radio" id="radioShowNotTranslatable" name="show" value="ntx" class="custom-control-input" {{ NTX_CHECKED }}>
-            <label class="custom-control-label text-warning" for="radioShowNotTranslatable" title="NotTranslatable concepts only">NotTranslatable</label>
+            <label class="custom-control-label text-warning" for="radioShowNotTranslatable" title="Not translatable concepts">NotTranslatable</label>
           </div>
         </div>
 
@@ -42,7 +44,7 @@
     {% elif status == 'deleted' %}
         {% set DELETED_STATUS = 'checked' %}
     {% elif status == 'notpref' %}
-        {% set NOTPREF_STATUS = 'checked' %}
+        {% set NOTPREF_STATUS = 'checked' %}        
     {% else %}
         {% set ALL_STATUS = 'checked' %}
     {% endif %}
@@ -70,8 +72,8 @@
           </div>
           <div class="custom-control custom-radio custom-control-inline">
             <input type="radio" id="radioStatusNotPref" name="status" value="notpref" class="custom-control-input" {{ NOTPREF_STATUS }}>
-            <label class="custom-control-label" for="radioStatusNotPref" title="NotPreferred concepts only">NotPref</label>
-          </div>
+            <label class="custom-control-label" for="radioStatusNotPref" title="NonPrefConcepts without translated preferred term">NotPref</label>
+          </div>            
         </div>
 
 
diff --git a/flask-app/mtw/templates/sparql/tree-browse.sparql b/flask-app/mtw/templates/sparql/tree-browse.sparql
index c623877..cb2433e 100644
--- a/flask-app/mtw/templates/sparql/tree-browse.sparql
+++ b/flask-app/mtw/templates/sparql/tree-browse.sparql
@@ -89,6 +89,7 @@ SELECT distinct ?tn ?label ?d ?type ?val ?active ?scn ?scnt ?ntx ?lockedBy {
     OPTIONAL {?c meshv:scopeNote ?scnv .
               BIND('YES' as ?scn)
              }
+             
     OPTIONAL {?c mesht:scopeNote ?scntv
               BIND('YES' as ?scnt)
              }
@@ -103,7 +104,7 @@ SELECT distinct ?tn ?label ?d ?type ?val ?active ?scn ?scnt ?ntx ?lockedBy {
         FILTER( ?dateCrt >= "{{ config.CREATED_AFTER }}"^^xsd:date )
     {% endif %}
 
-    {% if status == 'notpref' %}
+    {% if show == 'notpref' or status == 'notpref' %}
         ?d meshv:concept ?npc .
         OPTIONAL { ?npc mesht:preferredTerm ?termIDnp }
         FILTER (!BOUND(?termIDnp))  ## NotTranslated notPreferred