diff --git a/defaults.xml b/defaults.xml
index d40f7d2f5..4f1f59aea 100644
--- a/defaults.xml
+++ b/defaults.xml
@@ -160,19 +160,22 @@ Started September 2000 by David Megginson, david@megginson.com
    -->
       <plod-minimum-expiry-time-secs type="double" userarchive="y">180.0</plod-minimum-expiry-time-secs>
       <static-lod>
-        <detailed type="double" userarchive="y">1500</detailed>
-        <rough type="double" userarchive="y">9000</rough>
-        <bare type="double" userarchive="y">30000</bare>
         <!--
-          ai-range-mode-pixel: true=use pixel size on screen, false=use distance from eyepoint
-          With /sim/rendering/static-lod/ai-range-mode-pixel set to true
-          /sim/rendering/static-lod/ai-detailed and /sim/rendering/static-lod/ai-bare now contains the minimum size of the
-          model on the screen to be displayed. Values of 10-50 seem to make some sense.
+        2018.3 changes to the way the LOD work
+               - reworked UI
+               - use the detailed with deltas to prevent silly values; 
+               - removed the pixel range mode and added distance (the previous
+                 code and UI had both pixel mode and range mode, need only one)
+               - For the AI/MP meters is the distance from the view point, wherease
+                 pixels is the size on screen.
         -->
-        <ai-range-mode-pixel type="bool" userarchive="y">false</ai-range-mode-pixel>
-        <ai-detailed type="double" userarchive="y">3000</ai-detailed>
-        <ai-bare type="double" userarchive="y">10000</ai-bare>
-        <ai-interior type="double" userarchive="y">50</ai-interior>
+        <detailed type="double" userarchive="y">1500</detailed>
+        <rough-delta type="double" userarchive="y">7500</rough-delta>
+        <bare-delta type="double" userarchive="y">21000</bare-delta>
+        <aimp-range-mode-distance type="bool" userarchive="y">false</aimp-range-mode-distance>
+        <aimp-detailed type="double" userarchive="y">400</aimp-detailed>
+        <aimp-bare type="double" userarchive="y">0</aimp-bare>
+        <aimp-interior type="double" userarchive="y">200</aimp-interior>
       </static-lod>
       <random-objects type="bool" userarchive="y">true</random-objects>
       <random-vegetation type="bool" userarchive="y">true</random-vegetation>
@@ -509,6 +512,7 @@ Started September 2000 by David Megginson, david@megginson.com
       <path n="1">Huds/default.xml</path>
       <path n="2">Huds/NTPS.xml</path>
       <path n="3">Huds/minimal.xml</path>
+      <path n="4">Huds/developer.xml</path>
       <!-- new HUD -->
       <visibility n="1" type="bool">false</visibility>
       <!-- new HUD -->
diff --git a/gui/dialogs/rendering.xml b/gui/dialogs/rendering.xml
index 3dd4ddd12..22beeb2ed 100644
--- a/gui/dialogs/rendering.xml
+++ b/gui/dialogs/rendering.xml
@@ -238,17 +238,6 @@
 				</binding>
 			</checkbox>
 
-			<checkbox>
-				<halign>left</halign>
-				<label>Use detailed MP models</label>
-				<name>mpmodels</name>
-				<property>/sim/multiplay/use-detailed-models</property>
-				<binding>
-					<command>dialog-apply</command>
-					<object-name>mpmodels</object-name>
-				</binding>
-			</checkbox>
-
   		<empty>
   			<stretch>1</stretch>
   		</empty>
diff --git a/gui/dialogs/static-lod.xml b/gui/dialogs/static-lod.xml
index 27a9be3c7..9ff5963d8 100644
--- a/gui/dialogs/static-lod.xml
+++ b/gui/dialogs/static-lod.xml
@@ -1,204 +1,582 @@
 <?xml version="1.0"?>
 
 <PropertyList>
-  <nasal>
-    <open>
-      <![CDATA[
-          var modePixel = (getprop("/sim/rendering/static-lod/ai-range-mode-pixel") == 1);
-          setprop( "/sim/gui/dialogs/static-lod/mode/pixel", modePixel );
-          setprop( "/sim/gui/dialogs/static-lod/mode/distance", !modePixel );
+    <nasal>
+        <open>
+        <![CDATA[
+            var lodDIALOG = cmdarg();
+            var dlgLOD = props.Node.new({"dialog-name": "static-lod"});
 
-          var reload_props = [
-            "/sim/rendering/static-lod/rough",
-            "/sim/rendering/static-lod/bare"];
+            var ai_mp_bare = gui.findElementByName(lodDIALOG, "aimp-bare");
+            var ai_mp_bare_label = gui.findElementByName(lodDIALOG, "aimp-bare-label");
+            var ai_mp_detailed = gui.findElementByName(lodDIALOG, "aimp-detailed");
+            var ai_mp_detailed_label = gui.findElementByName(lodDIALOG, "aimp-detailed-label");
+            var current_detailed = nil;
+            var current_bare = nil;
+            var current_ai_mp_mode = "";
 
-          var reload_vals = {};
-          foreach (var p; reload_props) {
-            reload_vals[p] = getprop(p);
-          }
-    ]]>
-    </open>
-  </nasal>
+            if (getprop("/sim/rendering/static-lod/aimp-detailed") < 0)
+                setprop("/sim/gui/dialogs/static-lod/aimp-mp-mode", "High Detail only");
+            else if (getprop("/sim/rendering/static-lod/aimp-detailed") == getprop("/sim/rendering/static-lod/aimp-bare"))
+                setprop("/sim/gui/dialogs/static-lod/aimp-mp-mode", "Low Detail only");
+            else
+                setprop("/sim/gui/dialogs/static-lod/aimp-mp-mode", "Specify Ranges");
 
-  <name>static-lod</name>
-  <layout>vbox</layout>
+            update_enabling = func{
+                var mode = getprop("/sim/gui/dialogs/static-lod/aimp-mp-mode");
+                if (mode == "Low Detail only") {
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-bare-enabled", 1);
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-detailed-enabled", 0);
+                } else if (mode == "High Detail only") {
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-bare-enabled", 0);
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-detailed-enabled", 0);
+                } else {
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-bare-enabled", 1);
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-detailed-enabled", 1);
+                }
 
-  <group>
-    <layout>hbox</layout>
-	  <empty><stretch>1</stretch></empty>
+#                if (!getprop("/sim/rendering/static-lod/aimp-bare") and !getprop("/sim/rendering/static-lod/aimp-detailed")) {
+#                    setprop("/sim/rendering/static-lod/aimp-bare", 0);
+#                    setprop("/sim/rendering/static-lod/aimp-detailed",100);
+#                }
+                return mode;
+            };
 
-    <text>
-      <label>Adjust Level Of Detail Ranges</label>
-    </text>
+            reload_sliders = func(reload) {
+                if (!reload)
+                    return ;
+                var current_dialog = getprop("/sim/gui/dialogs/current-dialog");
+                fgcommand("dialog-close", dlgLOD);
+                fgcommand("dialog-show", dlgLOD);
+                if (current_dialog != "") {
+                    var show_node = props.Node.new({"dialog-name": current_dialog});
+                    fgcommand("dialog-show", show_node);
+                }
+            }
+            ;
 
-	  <empty><stretch>1</stretch></empty>
+            update_scenery_text = func{
+                var detailed = getprop("/sim/rendering/static-lod/detailed");
+                var bare = getprop("/sim/rendering/static-lod/bare-delta");
+                var rough = getprop("/sim/rendering/static-lod/rough-delta");
+                setprop("/sim/rendering/static-lod/detailed-description", sprintf("from %5.0fm to %5.0fm",0, detailed));
+                setprop("/sim/rendering/static-lod/rough-delta-description", sprintf("from %5.0fm to %5.0fm",detailed, rough+detailed));
+                setprop("/sim/rendering/static-lod/bare-delta-description", sprintf("from %5.0fm to %5.0fm",rough+detailed,rough+bare+detailed));
+            };
 
-    <button>
-      <pref-width>16</pref-width>
-      <pref-height>16</pref-height>
-      <legend></legend>
-      <keynum>27</keynum>
-      <border>2</border>
-      <binding>
-        <command>dialog-close</command>
-      </binding>
-    </button>
-  </group>
+            update_description = func(mode){
 
-  <hrule/>
+                var descD = "";
+                var descB = "";
+                var descW = "";
 
-  <group>
-    <layout>table</layout>
-    <halign>center</halign>
+                if (getprop("sim/rendering/static-lod/aimp-range-mode-distance")) {
+                    if (mode == "Low Detail only") {
+                        if (getprop("/sim/rendering/static-lod/aimp-bare")>0) {
+                            descD = sprintf("visible when viewpoint within\n%.0f meters", getprop("/sim/rendering/static-lod/aimp-detailed"));
+                        } else {
+                            descB = "always visible";
+                        }
+                    } else if (mode == "High Detail only") {
+                        descW = "Always visible regardless of distance";
+                    } else {
+                        descW = "";
+                        descD = sprintf("0 to %.0fm from viewpoint", getprop("/sim/rendering/static-lod/aimp-detailed"));
+                        descB = sprintf("%.0fm to %.0fm", getprop("/sim/rendering/static-lod/aimp-detailed"), getprop("/sim/rendering/static-lod/aimp-detailed")+getprop("/sim/rendering/static-lod/aimp-bare"));
+                        var lowDetailRange = getprop("/sim/rendering/static-lod/aimp-detailed") + getprop("/sim/rendering/static-lod/aimp-bare") ;
+                        if (lowDetailRange < 1000)
+                            descW = sprintf("WARNING: Low Detail too close, nothing drawn over %.0fm", lowDetailRange);
 
-    <text>
-      <row>0</row><col>1</col><colspan>3</colspan>
-      <label>Max. Ranges (m)</label>
-    </text>
+                    }
+                } else {
+                    if (mode == "Low Detail only") {
+                        if (getprop("/sim/rendering/static-lod/aimp-bare")>0) {
+                            descD = sprintf("visible when larger than\n%.0f pixels in size on screen", getprop("/sim/rendering/static-lod/aimp-detailed"));
+                            descB = "";
+                            descW = sprintf("WARNING: When smaller than %.0f pixels nothing will be drawn", getprop("/sim/rendering/static-lod/aimp-bare"));
+                        } else {
+                            descW = "";
+                            descD = "";
+                            descB = "always visible";
+                        }
+                    } else if (mode == "High Detail only") {
+                        descW = "Always visible regardless of distance";
+                    } else {
+                        descW = "";
+                        if (getprop("/sim/rendering/static-lod/aimp-bare")>0)
+                            descW = sprintf("WARNING: Below %.0f pixels in size nothing will be drawn", getprop("/sim/rendering/static-lod/aimp-bare"));
+                        descD = sprintf("above %.0f pixels in size", getprop("/sim/rendering/static-lod/aimp-detailed"));
+                        descB = sprintf("above %.0f pixels in size", getprop("/sim/rendering/static-lod/aimp-bare"));
+                    }
+                }
+                setprop("/sim/gui/dialogs/static-lod/aimp-detailed-description",  descD);
+                setprop("/sim/gui/dialogs/static-lod/aimp-bare-description", descB);
+                setprop("/sim/gui/dialogs/static-lod/aimp-bare-description1", descW);
 
-    <text>
-      <row>1</row><col>1</col>
-      <label>Detailed</label>
-    </text>
-    <text>
-      <row>1</row><col>2</col>
-      <label>Rough</label>
-    </text>
-    <text>
-      <row>1</row><col>3</col>
-      <label>Bare</label>
-    </text>
+            };
+            # returns non zero if the value was adjusted and it can be adjusted (can_reload)
+            adjustValue = func(id, nodeId, value, can_reload){
+                var node = nodeId.getNode(id);
+                if (node != nil) {
+                    var cv = node.getValue();
+                    if (cv != value) {
+                        node.setValue(value);
+                        if (can_reload)
+                            reload_sliders(1);
+                    }
+                }
+                return 0;                   # no need to reload.
+            }
 
-    <text>
-      <row>2</row><col>0</col>
-      <halign>right</halign>
-      <label>Scenery</label>
-    </text>
+            update_ai_mp = func(can_reload) {
+                var mode = update_enabling ();  
+                var distance_mode = getprop("sim/rendering/static-lod/aimp-range-mode-distance");
+                update_description(mode);
+                if (mode == "Low Detail only") {
+                    setprop("/sim/rendering/static-lod/aimp-detailed",getprop("/sim/rendering/static-lod/aimp-bare"));
+                    can_reload = adjustValue("max", ai_mp_bare, 2000, can_reload);
+                    reload_sliders(can_reload);
+                } else if (mode == "High Detail only") {
+#                    setprop("/sim/rendering/static-lod/aimp-bare", 0);
+#                    setprop("/sim/rendering/static-lod/aimp-detailed",-1);
+                } else {
+                    if (!distance_mode) {
+                        if (getprop("/sim/rendering/static-lod/aimp-bare") > getprop("/sim/rendering/static-lod/aimp-detailed")){
+                            setprop("/sim/rendering/static-lod/aimp-bare", getprop("/sim/rendering/static-lod/aimp-detailed")-1 ) ;
+                        }
+                        can_reload = adjustValue("max", ai_mp_detailed, 2000, can_reload);
+                        can_reload = adjustValue("max", ai_mp_bare, getprop("/sim/rendering/static-lod/aimp-detailed"), can_reload);
+                    } else {
+                        can_reload = adjustValue("max", ai_mp_detailed, 3000, can_reload);
+                        can_reload = adjustValue("max", ai_mp_bare, 3000, can_reload);
+                    }
+                }
+            }
+            update_aimp_mode = func{
+                var new_mode = getprop("/sim/gui/dialogs/static-lod/aimp-mp-mode");
+                if (new_mode != current_ai_mp_mode) {
+                    
+                    if (current_ai_mp_mode == "Specify Ranges") {
+                        current_detailed = getprop("/sim/rendering/static-lod/aimp-detailed");
+                        current_bare =getprop("/sim/rendering/static-lod/aimp-bare");
+                    } 
+                    if (current_ai_mp_mode == "Low Detail only" or current_ai_mp_mode == "High Detail only") {
+                        if (current_detailed != nil)
+                            setprop("/sim/rendering/static-lod/aimp-detailed", current_detailed );
+                        if (current_bare != nil)
+                            setprop("/sim/rendering/static-lod/aimp-bare",current_bare);
+                    }
+                    if (new_mode == "High Detail only") {
+                        setprop("/sim/rendering/static-lod/aimp-detailed", -1);
+                        setprop("/sim/rendering/static-lod/aimp-bare",0);
+                    } else if (new_mode == "Low Detail only"){
+                        setprop("/sim/rendering/static-lod/aimp-detailed", 0);
+                        setprop("/sim/rendering/static-lod/aimp-bare",0);
+                    }
+                    current_ai_mp_mode = new_mode;
+                }
+                update_description(update_enabling());
+             }
+#            setlistener("/sim/gui/dialogs/static-lod/aimp-mp-mode", func(v){
+#            },0 ,0);
 
-    <input>
-      <row>2</row><col>1</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/detailed</property>
-    </input>
+            update_scenery_text ();
+            update_ai_mp (0);
 
-    <input>
-      <row>2</row><col>2</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/rough</property>
-    </input>
 
-    <input>
-      <row>2</row><col>3</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/bare</property>
-    </input>
+        ]]>
+        </open>
+    </nasal>
 
-    <text>
-      <row>3</row><col>0</col>
-      <halign>right</halign>
-      <label>AI/MP Aircraft</label>
-    </text>
+    <name>static-lod</name>
+    <layout>vbox</layout>
 
-    <input>
-      <row>3</row><col>1</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/ai-detailed</property>
-    </input>
+    <group>
+        <layout>hbox</layout>
+        <empty>
+            <stretch>1</stretch>
+        </empty>
 
-    <input>
-      <row>3</row><col>2</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/ai-bare</property>
-    </input>
+        <text>
+            <label>Adjust Level Of Detail Ranges</label>
+        </text>
 
-    <radio>
-      <row>3</row>
-      <col>3</col>
-      <halign>left</halign>
-      <name>pixel</name>
-      <property>sim/gui/dialogs/static-lod/mode/pixel</property>
-      <live>true</live>
-      <label>Pixel</label>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/gui/dialogs/static-lod/mode/distance</property>
-        <value>0</value>
-      </binding>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/gui/dialogs/static-lod/mode/pixel</property>
-        <value>1</value>
-      </binding>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/rendering/static-lod/ai-range-mode-pixel</property>
-        <value>1</value>
-      </binding>
-    </radio>
+        <empty>
+            <stretch>1</stretch>
+        </empty>
 
-    <radio>
-      <row>3</row>
-      <col>4</col>
-      <halign>left</halign>
-      <name>distance</name>
-      <property>sim/gui/dialogs/static-lod/mode/distance</property>
-      <live>true</live>
-      <label>Distance (m)</label>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/gui/dialogs/static-lod/mode/distance</property>
-        <value>1</value>
-      </binding>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/gui/dialogs/static-lod/mode/pixel</property>
-        <value>0</value>
-      </binding>
-      <binding>
-        <command>property-assign</command>
-        <property>sim/rendering/static-lod/ai-range-mode-pixel</property>
-        <value>0</value>
-      </binding>
-    </radio>
+        <button>
+            <pref-width>16</pref-width>
+            <pref-height>16</pref-height>
+            <legend></legend>
+            <keynum>27</keynum>
+            <border>2</border>
+            <binding>
+                <command>dialog-close</command>
+            </binding>
+        </button>
+    </group>
 
-    <text>
-      <row>4</row><col>0</col>
-      <halign>right</halign>
-      <label>AI/MP Interior</label>
-    </text>
+    <hrule/>
 
-    <input>
-      <row>4</row><col>1</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/ai-interior</property>
-    </input>
+    <group>
+        <layout>table</layout>
+        <halign>center</halign>
 
-<!-- // meaningless for now...
-    <input>
-      <row>3</row><col>3</col>
-      <halign>fill</halign>
-      <property>/sim/rendering/static-lod/ai-bare</property>
-    </input>
--->
 
-  </group>
+        <text>
+            <row>0</row>
+            <col>1</col>
+            <halign>center</halign>
+            <label>Scenery (Tiles, Buildings, Roads, Railways)</label>
+        </text>
 
-  <hrule/>
+        <text>
+            <row>1</row>
+            <col>0</col>
+            <label>Detailed</label>
+        </text>
+        <slider>
+            <row>1</row>
+            <col>1</col>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>scenery-detailed</name>
+            <property>/sim/rendering/static-lod/detailed</property>
+            <live>1</live>
+            <min>0</min>
+            <max>5000</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>scenery-detailed</object-name>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_scenery_text();
+                ]]>
+                </script>
+            </binding>
+        </slider>
 
-  <group>
-    <layout>hbox</layout>
-    <default-padding>10</default-padding>
-    <empty><stretch>true</stretch></empty>
-    <button>
-      <legend>OK</legend>
-      <default>true</default>
-      <equal>true</equal>
-      <binding>
-        <command>dialog-apply</command>
-      </binding>
-      <binding>
-          <command>nasal</command>
-          <script><![CDATA[
+        <text>
+            <row>1</row>
+            <col>2</col>
+            <halign>left</halign>
+            <label>xxxxxxxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/rendering/static-lod/detailed-description</property>
+        </text>
+
+        <!--ROUGH -->
+        <text>
+            <row>2</row>
+            <col>0</col>
+            <label>Rough</label>
+        </text>
+        <slider>
+            <row>2</row>
+            <col>1</col>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>scenery-rough</name>
+            <property>/sim/rendering/static-lod/rough-delta</property>
+            <live>1</live>
+            <min>0</min>
+            <max>200000</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>scenery-rough</object-name>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_scenery_text();
+                ]]>
+                </script>
+            </binding>
+        </slider>
+
+        <text>
+            <row>2</row>
+            <col>2</col>
+            <halign>left</halign>
+            <label>xxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/rendering/static-lod/rough-delta-description</property>
+        </text>
+
+        <!--BARE -->
+        <text>
+            <row>3</row>
+            <col>0</col>
+            <label>Bare</label>
+        </text>
+        <slider>
+            <row>3</row>
+            <col>1</col>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>scenery-bare</name>
+            <property>/sim/rendering/static-lod/bare-delta</property>
+            <live>1</live>
+            <min>0</min>
+            <max>200000</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>scenery-bare</object-name>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_scenery_text();
+                ]]>
+                </script>
+            </binding>
+        </slider>
+
+        <text>
+            <row>3</row>
+            <col>2</col>
+            <halign>left</halign>
+            <label>xxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/rendering/static-lod/bare-delta-description</property>
+        </text>
+        <!-- end bare -->
+
+        <!--This is the AI/MP part-->
+        <hrule>
+            <row>4</row>
+            <col>0</col>
+            <colspan>7</colspan>
+        </hrule>
+
+        <text>
+            <row>5</row>
+            <col>1</col>
+            <halign>center</halign>
+            <label>AI/MP Aircraft</label>
+        </text>
+            <combo>
+                <row>6</row>
+                <col>1</col>
+                <pref-width>200</pref-width>
+                <name>aimp-mode</name>
+                <property>/sim/gui/dialogs/static-lod/aimp-mp-mode</property>
+                <value>Specify Ranges</value>
+                <value>Low Detail only</value>
+                <value>High Detail only</value>
+                <editable>false</editable>
+                <binding>
+                    <command>dialog-apply</command>
+                    <object-name>aimp-mode</object-name>
+                </binding>
+                <binding>
+                    <command>nasal</command>
+                    <script>
+                        <![CDATA[
+                update_aimp_mode();
+                    ]]>
+                    </script>
+                </binding>
+            </combo>
+        <checkbox>
+            <row>6</row>
+            <col>2</col>
+            
+            <halign>left</halign>
+            <name>distance</name>
+            <property>sim/rendering/static-lod/aimp-range-mode-distance</property>
+            <live>true</live>
+            <label>AI/MP in meters</label>
+            <binding>
+                <command>property-toggle</command>
+                <property>sim/rendering/static-lod/aimp-range-mode-distance</property>
+                <value>0</value>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_ai_mp(0);
+                ]]>
+                </script>
+            </binding>
+
+        </checkbox>
+
+        <!--ai - detail-->
+        <text>
+            <row>7</row>
+            <col>0</col>
+            <name>aimp-detailed-label</name>
+            <enable><property>/sim/gui/dialogs/static-lod/aimp-mp-detailed-enabled</property></enable>
+            <label>High Detail</label>
+        </text>
+        <slider>
+            <row>7</row>
+            <col>1</col>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>aimp-detailed</name>
+            <enable><property>/sim/gui/dialogs/static-lod/aimp-mp-detailed-enabled</property></enable>
+            <property>/sim/rendering/static-lod/aimp-detailed</property>
+            <live>1</live>
+            <min>0</min>
+            <max>1500</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>aimp-detailed</object-name>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_ai_mp(1);
+                ]]>
+                </script>
+            </binding>
+            <binding>
+                <command>dialog-update</command>
+            </binding>
+
+        </slider>
+
+        <text>
+            <row>7</row>
+            <col>2</col>
+            <halign>left</halign>
+            <label>xxxxxxxxxxxxxxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/gui/dialogs/static-lod/aimp-detailed-description</property>
+        </text>
+        <!-- end ai detail -->
+
+        <!--ai - bare-->
+        <text>
+            <name>aimp-bare-label</name>
+            <enable><property>/sim/gui/dialogs/static-lod/aimp-mp-bare-enabled</property></enable>
+            <row>8</row>
+            <col>0</col>
+            <label>Low Detail</label>
+        </text>
+        <slider>
+            <row>8</row>
+            <col>1</col>
+            <enable><property>/sim/gui/dialogs/static-lod/aimp-mp-bare-enabled</property></enable>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>aimp-bare</name>
+            <property>/sim/rendering/static-lod/aimp-bare</property>
+            <live>1</live>
+            <min>0</min>
+            <max>1500</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>aimp-bare</object-name>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_ai_mp(1);
+                ]]>
+                </script>
+            </binding>
+            <binding>
+                <command>dialog-update</command>
+            </binding>
+        </slider>
+
+        <text>
+            <row>8</row>
+            <col>2</col>
+            <halign>left</halign>
+            <valign>top</valign>
+            <label>xxxxxxxxxxxxxxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/gui/dialogs/static-lod/aimp-bare-description</property>
+        </text>
+        <text>
+            <row>9</row>
+            <col>1</col>
+            <halign>left</halign>
+            <valign>top</valign>
+            <label>xxxxxxxxxxxxxxxxxxxxxxxxxx</label>
+            <live>true</live>
+            <property>/sim/gui/dialogs/static-lod/aimp-bare-description1</property>
+        </text>
+
+        <text>
+            <row>11</row>
+            <col>0</col>
+            <halign>right</halign>
+            <label>AI/MP Interior</label>
+        </text>
+
+        <slider>
+            <row>11</row>
+            <col>1</col>
+            <pref-width>300</pref-width>
+            <pref-height>14</pref-height>
+            <name>aimp-interior</name>
+            <property>/sim/rendering/static-lod/aimp-interior</property>
+            <live>1</live>
+            <min>0</min>
+            <max>1500</max>
+            <binding>
+                <command>dialog-apply</command>
+                <object-name>aimp-interior</object-name>
+            </binding>
+            <!--<binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    update_ai_mp(1);
+                ]]>
+                </script>
+            </binding>
+            <binding>
+                <command>dialog-update</command>
+            </binding>-->
+        </slider>
+        <text>
+            <row>11</row>
+            <col>2</col>
+            <halign>left</halign>
+            <valign>top</valign>
+            <label>xxxxxxxxxxxxxxxxxxxxxxxxxx</label>
+            <format>%.0f </format>
+            <live>true</live>
+            <property>/sim/rendering/static-lod/aimp-interior</property>
+        </text>
+
+
+    </group>
+
+    <hrule/>
+
+    <group>
+        <layout>hbox</layout>
+        <default-padding>10</default-padding>
+        <empty>
+            <stretch>true</stretch>
+        </empty>
+        <button>
+            <legend>OK</legend>
+            <default>true</default>
+            <equal>true</equal>
+            <binding>
+                <command>dialog-apply</command>
+            </binding>
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
             var reinit = 0;
             foreach (var p; reload_props) {
               if (reload_vals[p] != getprop(p)) {
@@ -211,41 +589,68 @@
               fgcommand("reinit", props.Node.new({"subsystem": "scenery"}));
             }
           ]]>
-          </script>
-      </binding>
-      <binding>
-        <command>dialog-close</command>
-      </binding>
-    </button>
-    <empty><stretch>true</stretch></empty>
-    <button>
-      <legend>Apply</legend>
-      <equal>true</equal>
-      <binding>
-        <command>dialog-apply</command>
-      </binding>
-    </button>
-    <empty><stretch>true</stretch></empty>
-    <button>
-      <legend>Reset</legend>
-      <equal>true</equal>
-      <binding>
-        <command>dialog-update</command>
-      </binding>
-    </button>
-    <empty><stretch>true</stretch></empty>
-    <button>
-      <legend>Cancel</legend>
-      <key>Esc</key>
-      <binding>
-        <command>dialog-close</command>
-      </binding>
-    </button>
-  </group>
+                </script>
+            </binding>
+            <binding>
+                <command>dialog-close</command>
+            </binding>
+        </button>
+        <empty>
+            <stretch>true</stretch>
+        </empty>
+        <button>
+            <legend>Apply</legend>
+            <equal>true</equal>
+            <binding>
+                <command>dialog-apply</command>
+            </binding>
+        </button>
+        <empty>
+            <stretch>true</stretch>
+        </empty>
+
+        <button>
+            <legend>Defaults</legend>
+            <equal>true</equal>
+
+            <!--end reset for pixel mode-->
+            <binding>
+                <command>nasal</command>
+                <script>
+                    <![CDATA[
+                    setprop("/sim/gui/dialogs/static-lod/aimp-mp-mode", "Specify Ranges");
+                    setprop("/sim/rendering/static-lod/detailed",1500);
+                    setprop("/sim/rendering/static-lod/rough-delta",7500);
+                    setprop("/sim/rendering/static-lod/bare-delta",21000);
+                    if (getprop("sim/rendering/static-lod/aimp-range-mode-distance")){
+                        # Reset for meters
+                        setprop("/sim/rendering/static-lod/aimp-detailed",500);
+                        setprop("/sim/rendering/static-lod/aimp-bare",2000);
+                        setprop("/sim/rendering/static-lod/aimp-interior",50);
+                    } else {
+                        # Reset for pixel mode
+                        setprop("/sim/rendering/static-lod/aimp-detailed",400);
+                        setprop("/sim/rendering/static-lod/aimp-bare",0);
+                        setprop("/sim/rendering/static-lod/aimp-interior",200);
+                    }
+                    update_description(update_enabling());
+                    reload_sliders(1);
+                ]]>
+                </script>
+            </binding>
+        </button>
+        <empty>
+            <stretch>true</stretch>
+        </empty>
+        <button>
+            <legend>Close</legend>
+            <key>Esc</key>
+            <binding>
+                <command>dialog-close</command>
+            </binding>
+        </button>
+    </group>
+
 
-	<nasal>
-		<open>
-		</open>
-	</nasal>
 
 </PropertyList>