diff --git a/IndustrialPark/ArchiveEditor/ArchiveEditor.cs b/IndustrialPark/ArchiveEditor/ArchiveEditor.cs
index ba652385..7b5f781e 100644
--- a/IndustrialPark/ArchiveEditor/ArchiveEditor.cs
+++ b/IndustrialPark/ArchiveEditor/ArchiveEditor.cs
@@ -731,7 +731,14 @@ private void importMultipleAssetsToolStripMenuItem_Click(object sender, EventArg
 
         private void importModelsToolStripMenuItem_Click(object sender, EventArgs e)
         {
-            (List<Section_AHDR> AHDRs, bool overwrite, bool makeSimps, bool ledgeGrabSimps, bool piptVcolors, bool solidSimps, bool jsp) = ImportModel.GetModels(archive.game);
+            (List<Section_AHDR> AHDRs,
+                bool overwrite, 
+                bool makeSimps, 
+                bool ledgeGrabSimps, 
+                bool piptVcolors, 
+                bool solidSimps, 
+                bool jsp, 
+                bool placeOnExistingDefaultLayer) = ImportModel.GetModels(archive.game, archive.NoLayers);
 
             if (AHDRs != null)
             {
@@ -739,7 +746,7 @@ private void importModelsToolStripMenuItem_Click(object sender, EventArgs e)
                 if (piptVcolors)
                     archive.MakePiptVcolors(assetIDs);
                 if (makeSimps)
-                    assetIDs.AddRange(archive.MakeSimps(assetIDs, solidSimps, ledgeGrabSimps));
+                    assetIDs.AddRange(archive.MakeSimps(assetIDs, solidSimps, ledgeGrabSimps, placeOnExistingDefaultLayer));
                 PopulateLayerComboBox();
                 OnEditorUpdate();
                 SetSelectedIndices(assetIDs, true);
diff --git a/IndustrialPark/ArchiveEditor/ArchiveEditorFunctions_AssetEditing.cs b/IndustrialPark/ArchiveEditor/ArchiveEditorFunctions_AssetEditing.cs
index 05a09aee..df6bc61b 100644
--- a/IndustrialPark/ArchiveEditor/ArchiveEditorFunctions_AssetEditing.cs
+++ b/IndustrialPark/ArchiveEditor/ArchiveEditorFunctions_AssetEditing.cs
@@ -898,12 +898,32 @@ public void ApplyScale(Vector3 factor, IEnumerable<AssetType> assetTypes = null,
             RecalculateAllMatrices();
         }
 
-        public List<uint> MakeSimps(List<uint> assetIDs, bool solid, bool ledgeGrabSimps)
+        public List<uint> MakeSimps(List<uint> assetIDs, bool solid, bool ledgeGrabSimps, bool placeOnExistingDefaultLayer)
         {
             if (!NoLayers)
             {
-                AddLayer();
-                SelectedLayerIndex = Layers.Count - 1;
+                bool defaultLayerExists = false;
+
+                if (placeOnExistingDefaultLayer)
+                {
+                    // Check every layer to see whether it is of type default
+                    for (int i = 0; i < Layers.Count; i++)
+                    {
+                        if (Layers[i].Type != LayerType.DEFAULT) continue;
+                    
+                        // If the layer is a default layer, select it.
+                        // Pick the first default layer found.
+                        defaultLayerExists = true;
+                        SelectedLayerIndex = i;
+                        break;
+                    }
+                }
+                
+                if (!placeOnExistingDefaultLayer || !defaultLayerExists)
+                {
+                    AddLayer();
+                    SelectedLayerIndex = Layers.Count - 1;
+                }
             }
 
             List<uint> outAssetIDs = new List<uint>();
diff --git a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.Designer.cs b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.Designer.cs
index f2753610..57dfe07d 100644
--- a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.Designer.cs
+++ b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.Designer.cs
@@ -45,6 +45,7 @@ private void InitializeComponent()
             this.checkBoxSolidSimps = new System.Windows.Forms.CheckBox();
             this.grpImportSettings = new System.Windows.Forms.GroupBox();
             this.grpSIMP = new System.Windows.Forms.GroupBox();
+            this.checkBoxUseExistingDefaultLayer = new System.Windows.Forms.CheckBox();
             this.groupBox1.SuspendLayout();
             this.groupBox2.SuspendLayout();
             this.grpImportSettings.SuspendLayout();
@@ -163,6 +164,7 @@ private void InitializeComponent()
             // 
             // grpSIMP
             // 
+            this.grpSIMP.Controls.Add(this.checkBoxUseExistingDefaultLayer);
             this.grpSIMP.Controls.Add(this.checkBoxGenSimps);
             this.grpSIMP.Controls.Add(this.checkBoxSolidSimps);
             this.grpSIMP.Controls.Add(this.checkBoxLedgeGrab);
@@ -170,6 +172,14 @@ private void InitializeComponent()
             this.grpSIMP.Name = "grpSIMP";
             this.grpSIMP.TabStop = false;
             // 
+            // checkBoxUseExistingDefaultLayer
+            // 
+            resources.ApplyResources(this.checkBoxUseExistingDefaultLayer, "checkBoxUseExistingDefaultLayer");
+            this.checkBoxUseExistingDefaultLayer.Checked = true;
+            this.checkBoxUseExistingDefaultLayer.CheckState = System.Windows.Forms.CheckState.Checked;
+            this.checkBoxUseExistingDefaultLayer.Name = "checkBoxUseExistingDefaultLayer";
+            this.checkBoxUseExistingDefaultLayer.UseVisualStyleBackColor = true;
+            // 
             // ImportModel
             // 
             this.AcceptButton = this.buttonOK;
@@ -195,9 +205,10 @@ private void InitializeComponent()
             this.grpSIMP.ResumeLayout(false);
             this.grpSIMP.PerformLayout();
             this.ResumeLayout(false);
-
         }
 
+        private System.Windows.Forms.CheckBox checkBoxUseExistingDefaultLayer;
+
         #endregion
 
         private System.Windows.Forms.ComboBox comboBoxAssetTypes;
diff --git a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.cs b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.cs
index 97b123d4..a86ea35e 100644
--- a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.cs
+++ b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.cs
@@ -11,7 +11,7 @@ namespace IndustrialPark
 {
     public partial class ImportModel : Form
     {
-        public ImportModel()
+        public ImportModel(bool noLayers)
         {
             InitializeComponent();
 
@@ -21,6 +21,7 @@ public ImportModel()
             comboBoxAssetTypes.Items.Add(AssetType.BSP);
             // comboBoxAssetTypes.Items.Add(AssetType.JSP);
             comboBoxAssetTypes.SelectedItem = AssetType.Model;
+            checkBoxUseExistingDefaultLayer.Visible = !noLayers;
         }
 
         List<string> filePaths = new List<string>();
@@ -66,21 +67,15 @@ private void buttonOK_Click(object sender, EventArgs e)
             Close();
         }
 
-        public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeGrab, bool piptVColors, bool solidSimps, bool jsp) GetModels(Game game)
+        public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeGrab, bool piptVColors, bool solidSimps, bool jsp, bool useExistingDefaultLayer) GetModels(Game game, bool noLayers)
         {
-            using (ImportModel a = new ImportModel())
+            using (ImportModel a = new ImportModel(noLayers))
                 if (a.ShowDialog() == DialogResult.OK)
                 {
                     List<Section_AHDR> AHDRs = new List<Section_AHDR>();
 
                     AssetType assetType = (AssetType)a.comboBoxAssetTypes.SelectedItem;
 
-                    if (assetType == AssetType.Model)
-                    {
-                        if (a.checkBoxGenSimps.Checked)
-                            MessageBox.Show("a SIMP for each imported MODL will be generated and placed on a new DEFAULT layer.");
-                    }
-
                     foreach (string filePath in a.filePaths)
                     {
                         string assetName;
@@ -110,7 +105,7 @@ public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeG
                                     "Error Importing Model",
                                     MessageBoxButtons.OK,
                                     MessageBoxIcon.Error);
-                                return (null, false, false, false, false, false, false);
+                                return (null, false, false, false, false, false, false, false);
                             }
                             catch (Exception)
                             {
@@ -118,7 +113,7 @@ public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeG
                                     "Error Importing Model",
                                     MessageBoxButtons.OK,
                                     MessageBoxIcon.Error);
-                                return (null, false, false, false, false, false, false);
+                                return (null, false, false, false, false, false, false, false);
                             }
                         }
                         else if (assetType == AssetType.BSP)
@@ -142,7 +137,7 @@ public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeG
                                     "Error Importing Model",
                                     MessageBoxButtons.OK,
                                     MessageBoxIcon.Error);
-                                return (null, false, false, false, false, false, false);
+                                return (null, false, false, false, false, false, false, false);
                             }
                             catch (Exception)
                             {
@@ -150,7 +145,7 @@ public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeG
                                     "Error Importing Model",
                                     MessageBoxButtons.OK,
                                     MessageBoxIcon.Error);
-                                return (null, false, false, false, false, false, false);
+                                return (null, false, false, false, false, false, false, false);
                             }
 
                         }
@@ -165,16 +160,24 @@ public static (List<Section_AHDR> AHDRs, bool overwrite, bool simps, bool ledgeG
                                 assetData));
                     }
 
-                    return (AHDRs, a.checkBoxOverwrite.Checked, a.checkBoxGenSimps.Checked, a.checkBoxLedgeGrab.Checked, a.checkBoxEnableVcolors.Checked, a.checkBoxSolidSimps.Checked, assetType == AssetType.JSP);
+                    return (AHDRs,
+                        a.checkBoxOverwrite.Checked,
+                        a.checkBoxGenSimps.Checked,
+                        a.checkBoxLedgeGrab.Checked,
+                        a.checkBoxEnableVcolors.Checked,
+                        a.checkBoxSolidSimps.Checked,
+                        assetType == AssetType.JSP,
+                        a.checkBoxUseExistingDefaultLayer.Checked);
                 }
 
-            return (null, false, false, false, false, false, false);
+            return (null, false, false, false, false, false, false, false);
         }
 
         private void checkBoxGenSimps_CheckedChanged(object sender, EventArgs e)
         {
             checkBoxLedgeGrab.Enabled = checkBoxGenSimps.Checked;
             checkBoxSolidSimps.Enabled = checkBoxGenSimps.Checked;
+            checkBoxUseExistingDefaultLayer.Enabled = checkBoxGenSimps.Checked;
         }
 
         private void comboBoxAssetTypes_SelectedIndexChanged(object sender, EventArgs e)
diff --git a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.resx b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.resx
index 7c2f8710..2b56d6cc 100644
--- a/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.resx
+++ b/IndustrialPark/ArchiveEditor/Dialogs/ImportModel.resx
@@ -189,7 +189,7 @@
     <value>6</value>
   </data>
   <data name="buttonOK.Location" type="System.Drawing.Point, System.Drawing">
-    <value>295, 231</value>
+    <value>296, 248</value>
   </data>
   <data name="buttonOK.Size" type="System.Drawing.Size, System.Drawing">
     <value>92, 23</value>
@@ -213,7 +213,7 @@
     <value>5</value>
   </data>
   <data name="buttonCancel.Location" type="System.Drawing.Point, System.Drawing">
-    <value>393, 231</value>
+    <value>394, 248</value>
   </data>
   <data name="buttonCancel.Size" type="System.Drawing.Size, System.Drawing">
     <value>92, 23</value>
@@ -360,7 +360,7 @@
     <value>grpSIMP</value>
   </data>
   <data name="&gt;&gt;checkBoxGenSimps.ZOrder" xml:space="preserve">
-    <value>0</value>
+    <value>1</value>
   </data>
   <data name="checkBoxEnableVcolors.AutoSize" type="System.Boolean, mscorlib">
     <value>True</value>
@@ -444,7 +444,7 @@
     <value>grpSIMP</value>
   </data>
   <data name="&gt;&gt;checkBoxLedgeGrab.ZOrder" xml:space="preserve">
-    <value>2</value>
+    <value>3</value>
   </data>
   <data name="checkBoxSolidSimps.AutoSize" type="System.Boolean, mscorlib">
     <value>True</value>
@@ -474,7 +474,7 @@
     <value>grpSIMP</value>
   </data>
   <data name="&gt;&gt;checkBoxSolidSimps.ZOrder" xml:space="preserve">
-    <value>1</value>
+    <value>2</value>
   </data>
   <data name="grpImportSettings.Location" type="System.Drawing.Point, System.Drawing">
     <value>225, 68</value>
@@ -500,11 +500,45 @@
   <data name="&gt;&gt;grpImportSettings.ZOrder" xml:space="preserve">
     <value>1</value>
   </data>
+  <data name="checkBoxUseExistingDefaultLayer.AutoSize" type="System.Boolean, mscorlib">
+    <value>True</value>
+  </data>
+  <data name="checkBoxUseExistingDefaultLayer.Enabled" type="System.Boolean, mscorlib">
+    <value>False</value>
+  </data>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="checkBoxUseExistingDefaultLayer.ImeMode" type="System.Windows.Forms.ImeMode, System.Windows.Forms">
+    <value>NoControl</value>
+  </data>
+  <data name="checkBoxUseExistingDefaultLayer.Location" type="System.Drawing.Point, System.Drawing">
+    <value>43, 73</value>
+  </data>
+  <data name="checkBoxUseExistingDefaultLayer.Size" type="System.Drawing.Size, System.Drawing">
+    <value>183, 17</value>
+  </data>
+  <data name="checkBoxUseExistingDefaultLayer.TabIndex" type="System.Int32, mscorlib">
+    <value>18</value>
+  </data>
+  <data name="checkBoxUseExistingDefaultLayer.Text" xml:space="preserve">
+    <value>Place on existing DEFAULT layer</value>
+  </data>
+  <data name="&gt;&gt;checkBoxUseExistingDefaultLayer.Name" xml:space="preserve">
+    <value>checkBoxUseExistingDefaultLayer</value>
+  </data>
+  <data name="&gt;&gt;checkBoxUseExistingDefaultLayer.Type" xml:space="preserve">
+    <value>System.Windows.Forms.CheckBox, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </data>
+  <data name="&gt;&gt;checkBoxUseExistingDefaultLayer.Parent" xml:space="preserve">
+    <value>grpSIMP</value>
+  </data>
+  <data name="&gt;&gt;checkBoxUseExistingDefaultLayer.ZOrder" xml:space="preserve">
+    <value>0</value>
+  </data>
   <data name="grpSIMP.Location" type="System.Drawing.Point, System.Drawing">
     <value>225, 140</value>
   </data>
   <data name="grpSIMP.Size" type="System.Drawing.Size, System.Drawing">
-    <value>261, 82</value>
+    <value>261, 102</value>
   </data>
   <data name="grpSIMP.TabIndex" type="System.Int32, mscorlib">
     <value>19</value>
@@ -531,9 +565,8 @@
     <value>6, 13</value>
   </data>
   <data name="$this.ClientSize" type="System.Drawing.Size, System.Drawing">
-    <value>497, 266</value>
+    <value>497, 283</value>
   </data>
-  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
   <data name="$this.StartPosition" type="System.Windows.Forms.FormStartPosition, System.Windows.Forms">
     <value>CenterScreen</value>
   </data>