diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 527a8b9..25ef1c8 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -313,9 +313,9 @@ AppFrame::AppFrame() :
 
     mainVisSplitter->SplitHorizontally( spectrumPanel, waterfallPanel, 0 );
     
-    bookmarkPanel = new BookmarkPanel(bookmarkSplitter, wxID_ANY, wxDefaultPosition, wxSize(120,-1));
+    bookmarkView = new BookmarkView(bookmarkSplitter, wxID_ANY, wxDefaultPosition, wxSize(120,-1));
             
-    bookmarkSplitter->SplitVertically( bookmarkPanel, mainVisSplitter );
+    bookmarkSplitter->SplitVertically( bookmarkView, mainVisSplitter );
     mainSplitter->SplitHorizontally( demodPanel, bookmarkSplitter );
             
     vbox->Add(mainSplitter, 1, wxEXPAND | wxALL, 0);
@@ -1836,6 +1836,10 @@ bool AppFrame::isUserDemodBusy() {
             wxGetApp().getDemodMgr().getLastActiveDemodulator() != wxGetApp().getDemodMgr().getActiveDemodulator());
 }
 
+BookmarkView *AppFrame::getBookmarkView() {
+    return bookmarkView;
+}
+
 
 #ifdef _WIN32
 bool AppFrame::canFocus() {
diff --git a/src/AppFrame.h b/src/AppFrame.h
index 6124b8c..c0b0299 100644
--- a/src/AppFrame.h
+++ b/src/AppFrame.h
@@ -103,7 +103,9 @@ public:
     void setViewState(long long center_freq);
     
     bool isUserDemodBusy();
-        
+    
+    BookmarkView *getBookmarkView();
+    
 #ifdef _WIN32
 	bool canFocus();
 #endif
@@ -136,7 +138,7 @@ private:
     wxSizerItem *gainSizerItem, *gainSpacerItem;
     wxSplitterWindow *mainVisSplitter, *mainSplitter, *bookmarkSplitter;
     wxBoxSizer *demodTray;
-    BookmarkPanel *bookmarkPanel;
+    BookmarkView *bookmarkView;
     
     DemodulatorInstance *activeDemodulator;
 
diff --git a/src/forms/Bookmark/BookmarkPanel.cpp b/src/forms/Bookmark/BookmarkPanel.cpp
index decffca..78c7f11 100644
--- a/src/forms/Bookmark/BookmarkPanel.cpp
+++ b/src/forms/Bookmark/BookmarkPanel.cpp
@@ -73,6 +73,7 @@ BookmarkPanel::BookmarkPanel( wxWindow* parent, wxWindowID id, const wxPoint& po
 	
 	this->SetSizer( bSizer1 );
 	this->Layout();
+	m_updateTimer.SetOwner( this, wxID_ANY );
 	
 	// Connect Events
 	m_treeView->Connect( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, wxTreeEventHandler( BookmarkPanel::onTreeBeginLabelEdit ), NULL, this );
@@ -86,6 +87,7 @@ BookmarkPanel::BookmarkPanel( wxWindow* parent, wxWindowID id, const wxPoint& po
 	m_bookmarkButton->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onBookmark ), NULL, this );
 	m_activateButton->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onActivate ), NULL, this );
 	m_removeButton->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onRemove ), NULL, this );
+	this->Connect( wxID_ANY, wxEVT_TIMER, wxTimerEventHandler( BookmarkPanel::onUpdateTimer ) );
 }
 
 BookmarkPanel::~BookmarkPanel()
@@ -102,5 +104,6 @@ BookmarkPanel::~BookmarkPanel()
 	m_bookmarkButton->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onBookmark ), NULL, this );
 	m_activateButton->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onActivate ), NULL, this );
 	m_removeButton->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( BookmarkPanel::onRemove ), NULL, this );
+	this->Disconnect( wxID_ANY, wxEVT_TIMER, wxTimerEventHandler( BookmarkPanel::onUpdateTimer ) );
 	
 }
diff --git a/src/forms/Bookmark/BookmarkPanel.fbp b/src/forms/Bookmark/BookmarkPanel.fbp
index 9a34b9b..b1ec872 100644
--- a/src/forms/Bookmark/BookmarkPanel.fbp
+++ b/src/forms/Bookmark/BookmarkPanel.fbp
@@ -1215,6 +1215,15 @@
                     </object>
                 </object>
             </object>
+            <object class="wxTimer" expanded="1">
+                <property name="enabled">0</property>
+                <property name="id">wxID_ANY</property>
+                <property name="name">m_updateTimer</property>
+                <property name="oneshot">0</property>
+                <property name="period">500</property>
+                <property name="permission">protected</property>
+                <event name="OnTimer">onUpdateTimer</event>
+            </object>
         </object>
     </object>
 </wxFormBuilder_Project>
diff --git a/src/forms/Bookmark/BookmarkPanel.h b/src/forms/Bookmark/BookmarkPanel.h
index 97e5848..7ef675f 100644
--- a/src/forms/Bookmark/BookmarkPanel.h
+++ b/src/forms/Bookmark/BookmarkPanel.h
@@ -21,6 +21,7 @@
 #include <wx/sizer.h>
 #include <wx/panel.h>
 #include <wx/button.h>
+#include <wx/timer.h>
 
 ///////////////////////////////////////////////////////////////////////////
 
@@ -46,6 +47,7 @@ class BookmarkPanel : public wxPanel
 		wxButton* m_bookmarkButton;
 		wxButton* m_activateButton;
 		wxButton* m_removeButton;
+		wxTimer m_updateTimer;
 		
 		// Virtual event handlers, overide them in your derived class
 		virtual void onTreeBeginLabelEdit( wxTreeEvent& event ) { event.Skip(); }
@@ -59,6 +61,7 @@ class BookmarkPanel : public wxPanel
 		virtual void onBookmark( wxCommandEvent& event ) { event.Skip(); }
 		virtual void onActivate( wxCommandEvent& event ) { event.Skip(); }
 		virtual void onRemove( wxCommandEvent& event ) { event.Skip(); }
+		virtual void onUpdateTimer( wxTimerEvent& event ) { event.Skip(); }
 		
 	
 	public:
diff --git a/src/forms/Bookmark/BookmarkView.cpp b/src/forms/Bookmark/BookmarkView.cpp
index fd82918..7b52abc 100644
--- a/src/forms/Bookmark/BookmarkView.cpp
+++ b/src/forms/Bookmark/BookmarkView.cpp
@@ -2,20 +2,32 @@
 #include "CubicSDR.h"
 
 BookmarkView::BookmarkView( wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style) : BookmarkPanel(parent, id, pos, size, style) {
-    doUpdateActive = false;
+
+    activeBranch = m_treeView->AddRoot("Active");
+    doUpdateActive = true;
+    m_updateTimer.Start(500);
+}
+
+void BookmarkView::onUpdateTimer( wxTimerEvent& event ) {
+    if (doUpdateActive) {
+        doUpdateActiveList();
+        
+//        doUpdateActive = false;
+    }
 }
 
 void BookmarkView::updateActiveList() {
+    doUpdateActive = true;
+}
+
+void BookmarkView::doUpdateActiveList() {
     std::vector<DemodulatorInstance *> &demods = wxGetApp().getDemodMgr().getDemodulators();
     
-    DemodulatorInstance *activeDemodulator = wxGetApp().getDemodMgr().getActiveDemodulator();
-    DemodulatorInstance *lastActiveDemodulator = wxGetApp().getDemodMgr().getLastActiveDemodulator();
+//    DemodulatorInstance *activeDemodulator = wxGetApp().getDemodMgr().getActiveDemodulator();
+//    DemodulatorInstance *lastActiveDemodulator = wxGetApp().getDemodMgr().getLastActiveDemodulator();
 
-    m_treeView->Disable();
-    m_treeView->DeleteAllItems();
     activeItems.erase(activeItems.begin(),activeItems.end());
-    
-    activeBranch = m_treeView->AddRoot("Active");
+    m_treeView->DeleteChildren(activeBranch);
     
     for (auto demod_i : demods) {
         wxTreeItemId itm = m_treeView->AppendItem(activeBranch,demod_i->getLabel());
@@ -24,6 +36,7 @@ void BookmarkView::updateActiveList() {
     
     m_treeView->Enable();
     m_treeView->ExpandAll();
+    
 }
 
 void BookmarkView::onTreeBeginLabelEdit( wxTreeEvent& event ) {
diff --git a/src/forms/Bookmark/BookmarkView.h b/src/forms/Bookmark/BookmarkView.h
index bbef98c..53aa07d 100644
--- a/src/forms/Bookmark/BookmarkView.h
+++ b/src/forms/Bookmark/BookmarkView.h
@@ -11,6 +11,9 @@ public:
     void updateActiveList();
     
 protected:
+    void onUpdateTimer( wxTimerEvent& event );
+    void doUpdateActiveList();
+
     void onTreeBeginLabelEdit( wxTreeEvent& event );
     void onTreeEndLabelEdit( wxTreeEvent& event );
     void onTreeActivate( wxTreeEvent& event );