diff --git a/Scenes/Flask.cs b/Scenes/Flask.cs
index bc1e39e..9e97a21 100755
--- a/Scenes/Flask.cs
+++ b/Scenes/Flask.cs
@@ -35,7 +35,7 @@ public partial class Flask : TextureRect, IChemicalContainer
 			if (fc.Mixture.HeterogeneousMixture == HeterogeneousMixture.Null)
 			{
 				Map.Remove(fc);
-				RemoveChild(fc);
+				InnerLayer.RemoveChild(fc);
 			}
 		}
 	}
diff --git a/Scenes/MainControlPanel.cs b/Scenes/MainControlPanel.cs
index e1ddbf6..b7d2b4a 100644
--- a/Scenes/MainControlPanel.cs
+++ b/Scenes/MainControlPanel.cs
@@ -6,7 +6,6 @@ using VirtualChemistry.Chemistry.Mixtures.Implements;
 public partial class MainControlPanel : HBoxContainer
 {
 	private HSlider EnvTemperature { get; set; }
-
 	private HSlider ContainerVolume { get; set; }
 	private HomogeneousMixture SelectedMixture { get; set; }
 	private Label Density { get; set; }
@@ -14,6 +13,8 @@ public partial class MainControlPanel : HBoxContainer
 	private Label HeatConductivity { get; set; }
 	private Label Amount { get; set; }
 	private Label Temperature { get; set; }
+	private Label FreeVolume { get; set; }
+	private Label Stiffness { get; set; }
 	private Tree Compounds { get; set; }
 	// Called when the node enters the scene tree for the first time.
 	public override void _Ready()
@@ -25,16 +26,13 @@ public partial class MainControlPanel : HBoxContainer
 		HeatConductivity = GetNode<Label>("V2/HHeatConductivity/HeatConductivity");
 		Amount = GetNode<Label>("V2/HAmount/Amount");
 		Temperature = GetNode<Label>("V2/HTemperature/Temperature");
+		FreeVolume = GetNode<Label>("V2/HFreeVolume/FreeVolume");
+		Stiffness = GetNode<Label>("V2/HStiffnesss/Stiffness");
 		Compounds = GetNode<Tree>("V3/Compounds");
 		
 		GlobalScene.MainControlPanel = this;
 	}
 
-	// Called every frame. 'delta' is the elapsed time since the previous frame.
-	public override void _Process(double delta)
-	{
-	}
-
 	public void Update(HomogeneousMixture mixture)
 	{
 		SelectedMixture = mixture;
@@ -50,7 +48,9 @@ public partial class MainControlPanel : HBoxContainer
 		HeatConductivity.Text = $"{SelectedMixture.HeatConductivity.Get}";
 		Amount.Text = $"{SelectedMixture.Amount}";
 		Temperature.Text = $"{SelectedMixture.Temperature}";
-
+		FreeVolume.Text = $"{SelectedMixture.FreeVolume}";
+		Stiffness.Text = $"{SelectedMixture.CompressionStiffness}";
+		BuildTree();
 	}
 
 	private void BuildTree()
@@ -79,4 +79,33 @@ public partial class MainControlPanel : HBoxContainer
 			.GetMeta("isoExp")
 			.AsString();
 	}
+
+	private void OneStep()
+	{
+		GlobalScene.Flask.Content.OneStep();
+		GlobalScene.Flask.Update();
+	}
+
+	private void RemoveTop()
+	{
+		GlobalScene.Flask.Content.RemoveTop();
+		GlobalScene.Flask.Update();
+	}
+
+	private void RemoveBottom()
+	{
+		GlobalScene.Flask.Content.RemoveBottom();
+		GlobalScene.Flask.Update();
+	}
+
+	private void SetTemperature(float temp)
+	{
+		GlobalScene.Flask.EnvironmentTemperature = temp;
+	}
+
+	private void SetVolume(float vol)
+	{
+		GlobalScene.Flask.ContainerVolume = vol;
+		GlobalScene.Flask.Update();
+	}
 }
diff --git a/Scenes/MainControlPanel.tscn b/Scenes/MainControlPanel.tscn
index c8acbaa..ba0f4fc 100644
--- a/Scenes/MainControlPanel.tscn
+++ b/Scenes/MainControlPanel.tscn
@@ -30,6 +30,9 @@ text = "Env Temperature"
 
 [node name="EnvTemperature" type="HSlider" parent="V1"]
 layout_mode = 2
+max_value = 9.0
+step = 0.1
+value = 1.0
 
 [node name="Label2" type="Label" parent="V1"]
 layout_mode = 2
@@ -37,6 +40,10 @@ text = "Container Volume"
 
 [node name="ContainerVolume" type="HSlider" parent="V1"]
 layout_mode = 2
+min_value = 0.2
+max_value = 20.0
+step = 0.2
+value = 1.0
 
 [node name="VSeparator" type="VSeparator" parent="."]
 layout_mode = 2
@@ -103,6 +110,28 @@ text = "Temperature: "
 layout_mode = 2
 text = "0"
 
+[node name="HFreeVolume" type="HBoxContainer" parent="V2"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="V2/HFreeVolume"]
+layout_mode = 2
+text = "Free Volums: "
+
+[node name="FreeVolume" type="Label" parent="V2/HFreeVolume"]
+layout_mode = 2
+text = "0"
+
+[node name="HStiffnesss" type="HBoxContainer" parent="V2"]
+layout_mode = 2
+
+[node name="Label" type="Label" parent="V2/HStiffnesss"]
+layout_mode = 2
+text = "Stiffness:  "
+
+[node name="Stiffness" type="Label" parent="V2/HStiffnesss"]
+layout_mode = 2
+text = "0"
+
 [node name="VSeparator2" type="VSeparator" parent="."]
 layout_mode = 2
 
@@ -120,4 +149,9 @@ layout_mode = 2
 [node name="VSeparator4" type="VSeparator" parent="."]
 layout_mode = 2
 
+[connection signal="pressed" from="V1/OneStep" to="." method="OneStep"]
+[connection signal="pressed" from="V1/RemoveTop" to="." method="RemoveTop"]
+[connection signal="pressed" from="V1/RemoveBottom" to="." method="RemoveBottom"]
+[connection signal="value_changed" from="V1/EnvTemperature" to="." method="SetTemperature"]
+[connection signal="value_changed" from="V1/ContainerVolume" to="." method="SetVolume"]
 [connection signal="item_selected" from="V3/Compounds" to="." method="IsomerSelectedHandler"]
diff --git a/Scenes/VirtualChemDemo.cs b/Scenes/VirtualChemDemo.cs
index a2a11df..0113d10 100755
--- a/Scenes/VirtualChemDemo.cs
+++ b/Scenes/VirtualChemDemo.cs
@@ -12,12 +12,6 @@ public partial class VirtualChemDemo : Node2D
 		ExpressionLoader.Visible = true;
 	}
 
-	public void OneStep()
-	{
-		Flask.Content.OneStep();
-		Flask.Update();
-	}
-
 	// Called when the node enters the scene tree for the first time.
 	public override void _Ready()
 	{
@@ -26,7 +20,6 @@ public partial class VirtualChemDemo : Node2D
 		FullRepr = GetNode<RichTextLabel>("HRepr/FullRepr");
 		Flask = GetNode<Flask>("Flask");
 		GlobalScene.Demo = this;
-		
 	}
 
 	// Called every frame. 'delta' is the elapsed time since the previous frame.