diff --git a/help/content.json b/help/content.json
index bedf60c..cd2a480 100644
--- a/help/content.json
+++ b/help/content.json
@@ -8,28 +8,28 @@ children: [
     },{
     text:'WorkSpace Explorer',
     children:[{
-        text:'Resources',
+        text:'Data',
         id: 'resourceTree',        
         leaf:true
     },{
-        text:'Resources: Parameters',
+        text:'Data: Parameters',
         id: 'parametersTree',        
         leaf:true
     },{
-        text:'Resources: Filtering',
+        text:'Data: Filtering',
         id: 'filters',        
         leaf:true
     },{
-        text:'Resources: Time Tables',
+        text:'Data: Time Tables',
         id: 'timetables',        
         leaf:true
     },{
-        text:'Resources: Catalogs',
+        text:'Data: Catalogs',
         id: 'catalogs',        
         leaf:true
     },
     {
-        text:'Operations', 
+        text:'Activities', 
         id: 'operationsHelp',
         leaf:true    
     },{
diff --git a/help/filters b/help/filters
index 2b0ce10..ebed2f0 100644
--- a/help/filters
+++ b/help/filters
@@ -1,32 +1,32 @@
-<h2><img src="js/resources/images/16x16/filter.png" style="margin: 0px 10px 0px 0px;"/> Resources Tree : Filtering</h2> 
-<p>To reduce the size of the Parameter Tree use the <i>Filter Feature</i>.<br/>
+<h2><img src="js/resources/images/16x16/filter.png" style="margin: 0px 10px 0px 0px;"/>Data Tree : Filtering</h2> 
+<p>To reduce the size of the Data Parameter Tree use the <i>Filter Feature</i>.<br/>
 <h3>Creating a Filter</h3>
 <ol>
 <li> Click <img src="help/images/edit.png"/> to open the <b>Filter Control Panel</b>.
 <img  class="centered" src="help/images/filter_0.png" style="margin: 10px 10px 10px 0px;"/> 
 <hr>
-<li> Click <b>Add</b> button.
+<li> Click <b><i>Add</i></b> button.
 <img  class="centered" src="help/images/filter_1.png" style="margin: 10px 10px 10px 10px;"/> 
 <hr>
-<li><b>Right click</b>  on a filter group (<i>Local Parameters, Simulation Parameters)</i> to open
-context menu. Click <b>Add</b> to add a condition.
+<li><b><i>Right click (important !!!)</i></b>  on a filter group (<i>Local Parameters, Simulation Parameters)</i> to open
+context menu. Click <b><i>Add</i></b> to add a condition.
 <img  class="centered" src="help/images/filter_2.png" style="margin: 10px 10px 10px 0px;"/> 
 <hr>
-<li> <b>Double click</b> consequently the three areas of emphasized row to see the list of possible filters / conditions / values.
+<li> <b><i>Double click</i></b> consequently the three areas of emphasized row to see the list of possible filters / conditions / values.
 <img  class="centered" src="help/images/filter_3.png" style="margin: 10px 10px 10px 0px;"/>
 <hr>
-<li> You may combine several conditions in one filter. <b>Right click</b> an emphasized row to open context menu and select 
+<li> You may combine several conditions in one filter. <b><i>Right click</i></b> an emphasized row to open context menu and select 
 <b>Insert</b> option.
 <img  class="centered" src="help/images/filter_4.png" style="margin: 10px 10px 10px 10px;"/>
 <hr>
-<li>Add additional condition to filter parameter tree. You may use <b>AND</b> or <b>OR</b> logical
+<li>Add additional condition to filter parameter tree. You may use <i>AND</i> or <i>OR</i> logical
 operators.
 <img  class="centered" src="help/images/filter_5.png" style="margin: 10px 10px 10px 10px;"/>
 <hr>
-<li> Name the new filter and click <b>Save</b> button to save your modifications. 
+<li> Name the new filter and click <b><i>Save</i></b> button to save your modifications. 
 <img  class="centered" src="help/images/filter_6.png" style="margin: 10px 10px 10px 10px;"/>
 <hr>
-<li> Click <b>Apply</b> button to apply current filter to the Workspace Explorer - and get the filtered tree.
+<li> Click <b><i>Apply</i></b> button to apply current filter to the Workspace Explorer - and get the filtered tree.
 <img  class="centered" src="help/images/filter_7.png" style="margin: 10px 10px 10px 10px;"/>
 <hr>
 <li> It is very easy to filter your parameter tree with different filters you have created  
diff --git a/help/images/abc_1.png b/help/images/abc_1.png
index fee6733..f82b7ca 100644
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diff --git a/help/images/filter_7.png b/help/images/filter_7.png
index 5b40290..f0332a0 100644
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diff --git a/help/images/filter_8.png b/help/images/filter_8.png
index 50d1167..622b490 100644
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diff --git a/help/images/operationTab.png b/help/images/operationTab.png
index ceaf52a..49d5485 100644
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diff --git a/help/images/params.png b/help/images/params.png
index 633d3ed..4c4a568 100644
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diff --git a/help/images/paramtree.png b/help/images/paramtree.png
index dfc1d0d..fe92751 100644
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diff --git a/help/images/resourcesTree.png b/help/images/resourcesTree.png
index 6d308a6..191fd91 100644
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diff --git a/help/operationsHelp b/help/operationsHelp
index ce3ec9a..7c9bbba 100644
--- a/help/operationsHelp
+++ b/help/operationsHelp
@@ -1,7 +1,7 @@
-<h2><img src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/>WorkSpace Explorer : Operations Tree</h2>
+<h2><img src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/>WorkSpace Explorer : Activities Tree</h2>
 <p>
 <img src="help/images/operationTab.png" align="left" style="margin: 0px 10px 0px 0px;"/> 
-Operations Tree contains your <b>saved requests</b>. 
+Activities Tree contains your <b>saved requests</b>. 
 Note that you can organize your requests in the folders.
 </p>
 <p> 
diff --git a/help/parametersTree b/help/parametersTree
index e1f8285..762a400 100644
--- a/help/parametersTree
+++ b/help/parametersTree
@@ -1,4 +1,4 @@
-<h2><img src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/> Resources Tree: Parameters</h2>
+<h2><img src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/> Data Tree: Parameters</h2>
 <p>
 <img  src="help/images/params.png" align="left" style="margin: 0px 15px 0px 0px;"/>
 AMDA Parameters  differ by  their data bases location / origin.<p>   
diff --git a/help/resourceTree b/help/resourceTree
index 80ffcf3..9c7529f 100644
--- a/help/resourceTree
+++ b/help/resourceTree
@@ -1,11 +1,11 @@
-<h2><img  src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/>WorkSpace Explorer : Resources Tree</h2>
+<h2><img  src="js/resources/images/16x16/view_tree.png" style="margin: 0px 10px 0px 0px;"/>WorkSpace Explorer : Data Tree</h2>
 <p><b><i>Workspace Explorer</i></b> displays information on the current state of your workspace (WS).
 Note that WS size is limited to 200MB.<br/> WS size increase is possible on request.<p>
 </p>
 <p>
 <img  src="help/images/resourcesTree.png" align="left" style="margin: 0px 25px 0px 0px;"/>
-<p>The key part of the Workspace Explorer is the <b><i>Resources Tree</i></b>. 
-It shows the main objects you have access to: </p>
+<p>The key part of the Workspace Explorer is the <b><i>Data Tree</i></b>. 
+It shows the main data objects you have access to: </p>
 <li><b><i>Parameters</i></b> - different physical parameters ("base" parameters) which 
 are stored in the local and remote data bases or directly in your WS and can be treated by AMDA modules.<p> 
  
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