diff --git a/DMX-2.0/SeqSonUI.cs b/DMX-2.0/SeqSonUI.cs
index 4cda866..6a27225 100644
--- a/DMX-2.0/SeqSonUI.cs
+++ b/DMX-2.0/SeqSonUI.cs
@@ -212,7 +212,7 @@ namespace DMX2
 
 		protected void OnBtnGotoClicked (object sender, EventArgs e)
 		{
-			TimeSpan ts;
+			/*TimeSpan ts;
 			string[] formats = new string[]{ 
 				@"m\:s\.f",
 				@"m\:s",
@@ -220,7 +220,8 @@ namespace DMX2
 				@"h\:m\:s\.f"
 			};
 			if(!TimeSpan.TryParseExact(txtGoto.Text,formats,null,out ts)) return;
-			sequenceur.PlayTime = ts;
+			sequenceur.PlayTime = ts;*/
+			sequenceur.Command(txtGoto.Text);
 		}
 
 		protected void OnListFilesCursorChanged (object sender, EventArgs e)
diff --git a/DMX-2.0/SequenceurSon.cs b/DMX-2.0/SequenceurSon.cs
index a63b0a2..e3add42 100644
--- a/DMX-2.0/SequenceurSon.cs
+++ b/DMX-2.0/SequenceurSon.cs
@@ -49,7 +49,8 @@ namespace DMX2
 
 		delegate void Task ();
 
-		Queue<Task> taskQueue = new Queue<Task>();
+		System.Collections.Concurrent.ConcurrentQueue<Task> taskQueue = 
+			new System.Collections.Concurrent.ConcurrentQueue<Task>();
 
 		TimeSpan fading=TimeSpan.Zero;
 		TimeSpan fadeLen;
@@ -107,10 +108,9 @@ namespace DMX2
 			set{
 				if(element==null) return;
 				if(element.CurrentState != Gst.State.Paused && element.CurrentState != Gst.State.Playing){
-					lock(this)
-						taskQueue.Enqueue(delegate(){
-							PlayTime = value;
-						});
+					taskQueue.Enqueue(delegate(){
+						PlayTime = value;
+					});
 					return;
 				}
 				long pos = (long)(value.TotalMilliseconds) * 1000000;
@@ -163,10 +163,9 @@ namespace DMX2
 		{
 			if(element == null)return;
 			if(element.CurrentState != Gst.State.Paused && element.CurrentState != Gst.State.Playing){
-				lock(this)
-					taskQueue.Enqueue(delegate(){
-						Play();
-					});
+				taskQueue.Enqueue(delegate(){
+					Play();
+				});
 				return;
 			}
 
@@ -183,7 +182,8 @@ namespace DMX2
 			element.SetState(Gst.State.Null);
 			element.Dispose();
 			element=null;
-			taskQueue.Clear();
+			Task t;
+			while(taskQueue.TryDequeue (out t));
 		}
 
 		static void GstInit ()
@@ -222,11 +222,13 @@ namespace DMX2
 
 		public override void Tick (TimeSpan time)
 		{
-			if(element!=null && taskQueue.Count>0)
-				if(element.CurrentState == Gst.State.Paused || element.CurrentState == Gst.State.Playing)
-					lock(this)
-						taskQueue.Dequeue()();
-
+			if (element != null) {
+				if (element.CurrentState == Gst.State.Paused || element.CurrentState == Gst.State.Playing)
+				{	
+					Task t;
+					while(taskQueue.TryDequeue(out t)) t();
+				}
+			}
 			if (fading != TimeSpan.Zero) {
 				fading-=time;
 				if(fading<=TimeSpan.Zero){
diff --git a/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs b/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
index 5b9f07c..2162ffc 100644
--- a/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
+++ b/DMX-2.0/gtk-gui/DMX2.SeqSonUI.cs
@@ -43,6 +43,7 @@ namespace DMX2
 		private global::Gtk.Toolbar toolbar4;
 		private global::Gtk.ScrolledWindow GtkScrolledWindow;
 		private global::Gtk.NodeView listFiles;
+		private global::Gtk.Label label1;
 		private global::Gtk.Label GtkLabel9;
 		
 		protected virtual void Build ()
@@ -344,7 +345,7 @@ namespace DMX2
 			this.btnGoto.CanFocus = true;
 			this.btnGoto.Name = "btnGoto";
 			this.btnGoto.UseUnderline = true;
-			this.btnGoto.Label = "GoTo";
+			this.btnGoto.Label = "Cmd";
 			this.hbox3.Add (this.btnGoto);
 			global::Gtk.Box.BoxChild w73 = ((global::Gtk.Box.BoxChild)(this.hbox3 [this.btnGoto]));
 			w73.Position = 8;
@@ -407,6 +408,17 @@ namespace DMX2
 			this.vbox2.Add (this.GtkScrolledWindow);
 			global::Gtk.Box.BoxChild w80 = ((global::Gtk.Box.BoxChild)(this.vbox2 [this.GtkScrolledWindow]));
 			w80.Position = 1;
+			// Container child vbox2.Gtk.Box+BoxChild
+			this.label1 = new global::Gtk.Label ();
+			this.label1.Name = "label1";
+			this.label1.Xalign = 0F;
+			this.label1.LabelProp = "Commands : \n[XX][gMM:SS.f][vVOL,T][p|ps|s]\n(FileNumber)(g=goto)(v=volume,fade in/out time)(p=play,ps=pause,s=stop)";
+			this.label1.UseMarkup = true;
+			this.vbox2.Add (this.label1);
+			global::Gtk.Box.BoxChild w81 = ((global::Gtk.Box.BoxChild)(this.vbox2 [this.label1]));
+			w81.Position = 2;
+			w81.Expand = false;
+			w81.Fill = false;
 			this.GtkAlignment.Add (this.vbox2);
 			this.frame1.Add (this.GtkAlignment);
 			this.GtkLabel9 = new global::Gtk.Label ();
diff --git a/DMX-2.0/gtk-gui/gui.stetic b/DMX-2.0/gtk-gui/gui.stetic
index 49b9ba9..eee773b 100644
--- a/DMX-2.0/gtk-gui/gui.stetic
+++ b/DMX-2.0/gtk-gui/gui.stetic
@@ -3842,7 +3842,7 @@ trames DMX (ms)</property>
                                 <property name="MemberName" />
                                 <property name="CanFocus">True</property>
                                 <property name="Type">TextOnly</property>
-                                <property name="Label" translatable="yes">GoTo</property>
+                                <property name="Label" translatable="yes">Cmd</property>
                                 <property name="UseUnderline">True</property>
                                 <signal name="Clicked" handler="OnBtnGotoClicked" />
                               </widget>
@@ -3896,7 +3896,7 @@ trames DMX (ms)</property>
                         <property name="ShowArrow">False</property>
                         <property name="ButtonStyle">Icons</property>
                         <property name="IconSize">SmallToolbar</property>
-                        <node name="__gtksharp_92_Stetic_Editor_ActionToolbar" type="Toolbar">
+                        <node name="toolbar4" type="Toolbar">
                           <node type="Toolitem" action="closeAction1" />
                           <node type="Toolitem" action="actAddFile" />
                           <node type="Toolitem" action="actDelFile" />
@@ -3936,6 +3936,22 @@ trames DMX (ms)</property>
                     <property name="AutoSize">True</property>
                   </packing>
                 </child>
+                <child>
+                  <widget class="Gtk.Label" id="label1">
+                    <property name="MemberName" />
+                    <property name="Xalign">0</property>
+                    <property name="LabelProp" translatable="yes">Commands : 
+[XX][gMM:SS.f][vVOL,T][p|ps|s]
+(FileNumber)(g=goto)(v=volume,fade in/out time)(p=play,ps=pause,s=stop)</property>
+                    <property name="UseMarkup">True</property>
+                  </widget>
+                  <packing>
+                    <property name="Position">2</property>
+                    <property name="AutoSize">False</property>
+                    <property name="Expand">False</property>
+                    <property name="Fill">False</property>
+                  </packing>
+                </child>
               </widget>
             </child>
           </widget>