diff --git a/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.9.png b/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.9.png
deleted file mode 100644
index 7a3bac9b10..0000000000
Binary files a/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.9.png and /dev/null differ
diff --git a/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.png b/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.png
new file mode 100644
index 0000000000..b5056d235a
Binary files /dev/null and b/core/assets-raw/sprites/ui/scroll-knob-horizontal-black.png differ
diff --git a/core/assets-raw/sprites/ui/scroll-knob-vertical-black.9.png b/core/assets-raw/sprites/ui/scroll-knob-vertical-black.9.png
deleted file mode 100644
index 17d9dcf726..0000000000
Binary files a/core/assets-raw/sprites/ui/scroll-knob-vertical-black.9.png and /dev/null differ
diff --git a/core/assets-raw/sprites/ui/scroll-knob-vertical-black.png b/core/assets-raw/sprites/ui/scroll-knob-vertical-black.png
new file mode 100644
index 0000000000..1d1f180358
Binary files /dev/null and b/core/assets-raw/sprites/ui/scroll-knob-vertical-black.png differ
diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index df7f7dc469..fbd1ab4b42 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -627,7 +627,7 @@ keybind.chat.name = Chat
 keybind.player_list.name = Player list
 keybind.console.name = Console
 keybind.rotate.name = Rotate
-keybind.rotateplaced.name = Rotate Placed (Hold)
+keybind.rotateplaced.name = Rotate Existing (Hold)
 keybind.toggle_menus.name = Toggle menus
 keybind.chat_history_prev.name = Chat history prev
 keybind.chat_history_next.name = Chat history next
diff --git a/core/assets/sprites/sprites.atlas b/core/assets/sprites/sprites.atlas
index 06acf2f5d6..d35f68030d 100644
--- a/core/assets/sprites/sprites.atlas
+++ b/core/assets/sprites/sprites.atlas
@@ -15031,7 +15031,6 @@ scroll-knob-horizontal-black
   rotate: false
   xy: 1937, 749
   size: 40, 24
-  split: 11, 10, 10, 10
   orig: 40, 24
   offset: 0, 0
   index: -1
@@ -15039,7 +15038,6 @@ scroll-knob-vertical-black
   rotate: false
   xy: 1832, 429
   size: 24, 40
-  split: 10, 10, 6, 10
   orig: 24, 40
   offset: 0, 0
   index: -1
diff --git a/core/src/io/anuke/mindustry/content/UnitTypes.java b/core/src/io/anuke/mindustry/content/UnitTypes.java
index 8d005ca4c3..9d164438cb 100644
--- a/core/src/io/anuke/mindustry/content/UnitTypes.java
+++ b/core/src/io/anuke/mindustry/content/UnitTypes.java
@@ -17,7 +17,7 @@ public class UnitTypes implements ContentList{
 
     @Override
     public void load(){
-        draug = new UnitType("draug", Draug.class, Draug::new){{
+        draug = new UnitType("draug", Draug::new){{
             flying = true;
             drag = 0.01f;
             speed = 0.3f;
@@ -32,7 +32,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        spirit = new UnitType("spirit", Spirit.class, Spirit::new){{
+        spirit = new UnitType("spirit", Spirit::new){{
             flying = true;
             drag = 0.01f;
             speed = 0.4f;
@@ -53,7 +53,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        phantom = new UnitType("phantom", Phantom.class, Phantom::new){{
+        phantom = new UnitType("phantom", Phantom::new){{
             flying = true;
             drag = 0.01f;
             mass = 2f;
@@ -77,7 +77,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        dagger = new UnitType("dagger", Dagger.class, Dagger::new){{
+        dagger = new UnitType("dagger", Dagger::new){{
             maxVelocity = 1.1f;
             speed = 0.2f;
             drag = 0.4f;
@@ -93,7 +93,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        crawler = new UnitType("crawler", Crawler.class, Crawler::new){{
+        crawler = new UnitType("crawler", Crawler::new){{
             maxVelocity = 1.27f;
             speed = 0.285f;
             drag = 0.4f;
@@ -124,7 +124,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        titan = new UnitType("titan", Titan.class, Titan::new){{
+        titan = new UnitType("titan", Titan::new){{
             maxVelocity = 0.8f;
             speed = 0.22f;
             drag = 0.4f;
@@ -146,7 +146,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        fortress = new UnitType("fortress", Fortress.class, Fortress::new){{
+        fortress = new UnitType("fortress", Fortress::new){{
             maxVelocity = 0.78f;
             speed = 0.15f;
             drag = 0.4f;
@@ -168,7 +168,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        eruptor = new UnitType("eruptor", Eruptor.class, Eruptor::new){{
+        eruptor = new UnitType("eruptor", Eruptor::new){{
             maxVelocity = 0.81f;
             speed = 0.16f;
             drag = 0.4f;
@@ -190,7 +190,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        chaosArray = new UnitType("chaos-array", Dagger.class, Dagger::new){{
+        chaosArray = new UnitType("chaos-array", Dagger::new){{
             maxVelocity = 0.68f;
             speed = 0.12f;
             drag = 0.4f;
@@ -214,7 +214,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        eradicator = new UnitType("eradicator", Dagger.class, Dagger::new){{
+        eradicator = new UnitType("eradicator", Dagger::new){{
             maxVelocity = 0.68f;
             speed = 0.12f;
             drag = 0.4f;
@@ -239,7 +239,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        wraith = new UnitType("wraith", Wraith.class, Wraith::new){{
+        wraith = new UnitType("wraith", Wraith::new){{
             speed = 0.3f;
             maxVelocity = 1.9f;
             drag = 0.01f;
@@ -258,7 +258,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        ghoul = new UnitType("ghoul", Ghoul.class, Ghoul::new){{
+        ghoul = new UnitType("ghoul", Ghoul::new){{
             health = 220;
             speed = 0.2f;
             maxVelocity = 1.4f;
@@ -282,7 +282,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        revenant = new UnitType("revenant", Revenant.class, Revenant::new){{
+        revenant = new UnitType("revenant", Revenant::new){{
             health = 1000;
             mass = 5f;
             hitsize = 20f;
@@ -313,7 +313,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        lich = new UnitType("lich", Revenant.class, Revenant::new){{
+        lich = new UnitType("lich", Revenant::new){{
             health = 6000;
             mass = 20f;
             hitsize = 40f;
@@ -346,7 +346,7 @@ public class UnitTypes implements ContentList{
             }};
         }};
 
-        reaper = new UnitType("reaper", Revenant.class, Revenant::new){{
+        reaper = new UnitType("reaper", Revenant::new){{
             health = 11000;
             mass = 30f;
             hitsize = 56f;
diff --git a/core/src/io/anuke/mindustry/editor/MapEditorDialog.java b/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
index 8554a5abdf..c9b04ad256 100644
--- a/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
+++ b/core/src/io/anuke/mindustry/editor/MapEditorDialog.java
@@ -215,14 +215,6 @@ public class MapEditorDialog extends Dialog implements Disposable{
                 return;
             }
 
-            Vector2 v = pane.stageToLocalCoordinates(Core.input.mouse());
-
-            if(v.x >= 0 && v.y >= 0 && v.x <= pane.getWidth() && v.y <= pane.getHeight()){
-                Core.scene.setScrollFocus(pane);
-            }else{
-                Core.scene.setScrollFocus(null);
-            }
-
             if(Core.scene != null && Core.scene.getKeyboardFocus() == this){
                 doInput();
             }
diff --git a/core/src/io/anuke/mindustry/editor/MapInfoDialog.java b/core/src/io/anuke/mindustry/editor/MapInfoDialog.java
index 084258120a..b2b942250b 100644
--- a/core/src/io/anuke/mindustry/editor/MapInfoDialog.java
+++ b/core/src/io/anuke/mindustry/editor/MapInfoDialog.java
@@ -59,18 +59,25 @@ public class MapInfoDialog extends FloatingDialog{
 
             t.row();
             t.add("$editor.rules").padRight(8).left();
-            t.addButton("$edit", () -> ruleInfo.show(Vars.state.rules, () -> Vars.state.rules = new Rules())).left().width(200f);
+            t.addButton("$edit", () -> {
+                ruleInfo.show(Vars.state.rules, () -> Vars.state.rules = new Rules());
+                hide();
+            }).left().width(200f);
 
             t.row();
             t.add("$editor.waves").padRight(8).left();
-            t.addButton("$edit", waveInfo::show).left().width(200f);
+            t.addButton("$edit", () -> {
+                waveInfo.show();
+                hide();
+            }).left().width(200f);
 
             t.row();
             t.add("$editor.generation").padRight(8).left();
-            t.addButton("$edit",
-                () -> generate.show(Vars.maps.readFilters(editor.getTags().get("genfilters", "")),
-                filters -> editor.getTags().put("genfilters", JsonIO.write(filters)))
-            ).left().width(200f);
+            t.addButton("$edit", () -> {
+                generate.show(Vars.maps.readFilters(editor.getTags().get("genfilters", "")),
+                filters -> editor.getTags().put("genfilters", JsonIO.write(filters)));
+                hide();
+            }).left().width(200f);
 
             name.change();
             description.change();
diff --git a/core/src/io/anuke/mindustry/mod/ContentParser.java b/core/src/io/anuke/mindustry/mod/ContentParser.java
index 8beb9cd900..87f094e481 100644
--- a/core/src/io/anuke/mindustry/mod/ContentParser.java
+++ b/core/src/io/anuke/mindustry/mod/ContentParser.java
@@ -43,11 +43,9 @@ public class ContentParser{
 
     private ObjectMap<ContentType, TypeParser<?>> parsers = ObjectMap.of(
         ContentType.block, (TypeParser<Block>)(mod, name, value) -> {
-            String clas = value.getString("type");
-            Class<Block> type = resolve("io.anuke.mindustry.world." + clas, "io.anuke.mindustry.world.blocks." + clas, "io.anuke.mindustry.world.blocks.defense" + clas);
+            Class<Block> type = resolve(value.getString("type"), "io.anuke.mindustry.world", "io.anuke.mindustry.world.blocks", "io.anuke.mindustry.world.blocks.defense");
             Block block = type.getDeclaredConstructor(String.class).newInstance(mod + "-" + name);
-            value.remove("type");
-            readFields(block, value);
+            readFields(block, value, true);
 
             //make block visible
             if(block.buildRequirements != null){
@@ -57,29 +55,25 @@ public class ContentParser{
             return block;
         },
         ContentType.unit, (TypeParser<UnitType>)(mod, name, value) -> {
-            String clas = value.getString("type");
-            Class<BaseUnit> type = resolve("io.anuke.mindustry.entities.type.base." + clas);
-            java.lang.reflect.Constructor<BaseUnit> cons = type.getDeclaredConstructor();
-            UnitType unit = new UnitType(mod + "-" + name, type, () -> {
-                try{
-                    return cons.newInstance();
-                }catch(Exception e){
-                    throw new RuntimeException(e);
-                }
-            });
-            value.remove("type");
-            readFields(unit, value);
+            Class<BaseUnit> type = resolve(value.getString("type"), "io.anuke.mindustry.entities.type.base");
+            UnitType unit = new UnitType(mod + "-" + name, supply(type));
+            readFields(unit, value, true);
 
             return unit;
         },
-        ContentType.item, parser(Item::new),
-        ContentType.liquid, parser(Liquid::new),
-        ContentType.mech, parser(Mech::new)
+        ContentType.item, parser(ContentType.item, Item::new),
+        ContentType.liquid, parser(ContentType.liquid, Liquid::new),
+        ContentType.mech, parser(ContentType.mech, Mech::new)
     );
 
-    private <T extends Content> TypeParser<T> parser(Function<String, T> constructor){
+    private <T extends Content> TypeParser<T> parser(ContentType type, Function<String, T> constructor){
         return (mod, name, value) -> {
-            T item = constructor.get(mod + "-" + name);
+            T item;
+            if(Vars.content.getByName(type, name) != null){
+                item = (T)Vars.content.getByName(type, name);
+            }else{
+                item = constructor.get(mod + "-" + name);
+            }
             readFields(item, value);
             return item;
         };
@@ -122,6 +116,21 @@ public class ContentParser{
         return c;
     }
 
+    private <T> Supplier<T> supply(Class<T> type){
+        try{
+            java.lang.reflect.Constructor<T> cons = type.getDeclaredConstructor();
+            return () -> {
+                try{
+                    return cons.newInstance();
+                }catch(Exception e){
+                    throw new RuntimeException(e);
+                }
+            };
+        }catch(Exception e){
+            throw new RuntimeException(e);
+        }
+    }
+
     private Object field(Class<?> type, JsonValue value){
         return field(type, value.asString());
     }
@@ -165,6 +174,11 @@ public class ContentParser{
         });
     }
 
+    private void readFields(Object object, JsonValue jsonMap, boolean stripType){
+        if(stripType) jsonMap.remove("type");
+        readFields(object, jsonMap);
+    }
+
     private void readFields(Object object, JsonValue jsonMap){
         Class type = object.getClass();
         ObjectMap<String, FieldMetadata> fields = parser.getFields(type);
@@ -198,10 +212,10 @@ public class ContentParser{
     }
 
     /** Tries to resolve a class from a list of potential class names. */
-    private <T> Class<T> resolve(String... potentials) throws Exception{
+    private <T> Class<T> resolve(String base, String... potentials) throws Exception{
         for(String type : potentials){
             try{
-                return (Class<T>)Class.forName(type);
+                return (Class<T>)Class.forName(type + '.' + base);
             }catch(Exception ignored){
             }
         }
diff --git a/core/src/io/anuke/mindustry/net/Packets.java b/core/src/io/anuke/mindustry/net/Packets.java
index 117c9348c4..e7e92a9a2b 100644
--- a/core/src/io/anuke/mindustry/net/Packets.java
+++ b/core/src/io/anuke/mindustry/net/Packets.java
@@ -65,6 +65,7 @@ public class Packets{
     public static class ConnectPacket implements Packet{
         public int version;
         public String versionType;
+        public String mods;
         public String name, uuid, usid;
         public boolean mobile;
         public int color;
@@ -73,6 +74,7 @@ public class Packets{
         public void write(ByteBuffer buffer){
             buffer.putInt(Version.build);
             TypeIO.writeString(buffer, versionType);
+            TypeIO.writeString(buffer, mods);
             TypeIO.writeString(buffer, name);
             TypeIO.writeString(buffer, usid);
             buffer.put(mobile ? (byte)1 : 0);
@@ -86,6 +88,7 @@ public class Packets{
             versionType = TypeIO.readString(buffer);
             name = TypeIO.readString(buffer);
             usid = TypeIO.readString(buffer);
+            mods = TypeIO.readString(buffer);
             mobile = buffer.get() == 1;
             color = buffer.getInt();
             byte[] idbytes = new byte[8];
diff --git a/core/src/io/anuke/mindustry/type/UnitType.java b/core/src/io/anuke/mindustry/type/UnitType.java
index 74c51c5547..6a91aeadb7 100644
--- a/core/src/io/anuke/mindustry/type/UnitType.java
+++ b/core/src/io/anuke/mindustry/type/UnitType.java
@@ -14,9 +14,8 @@ import io.anuke.mindustry.gen.*;
 import io.anuke.mindustry.ui.*;
 
 public class UnitType extends UnlockableContent{
-    public final @NonNull
-    TypeID typeID;
-    public final @NonNull Supplier<? extends BaseUnit> constructor;
+    public @NonNull TypeID typeID;
+    public @NonNull Supplier<? extends BaseUnit> constructor;
 
     public float health = 60;
     public float hitsize = 7f;
@@ -43,8 +42,17 @@ public class UnitType extends UnlockableContent{
 
     public TextureRegion iconRegion, legRegion, baseRegion, region;
 
-    public <T extends BaseUnit> UnitType(String name, Class<T> type, Supplier<T> mainConstructor){
+    public <T extends BaseUnit> UnitType(String name, Supplier<T> mainConstructor){
+        this(name);
+        create(mainConstructor);
+    }
+
+    public <T extends BaseUnit> UnitType(String name){
         super(name);
+        this.description = Core.bundle.getOrNull("unit." + name + ".description");
+    }
+
+    public <T extends BaseUnit> void create(Supplier<T> mainConstructor){
         this.constructor = mainConstructor;
         this.description = Core.bundle.getOrNull("unit." + name + ".description");
         this.typeID = new TypeID(name, mainConstructor);
diff --git a/core/src/io/anuke/mindustry/ui/Minimap.java b/core/src/io/anuke/mindustry/ui/Minimap.java
index 16acc67a57..d4cba3bc33 100644
--- a/core/src/io/anuke/mindustry/ui/Minimap.java
+++ b/core/src/io/anuke/mindustry/ui/Minimap.java
@@ -91,8 +91,8 @@ public class Minimap extends Table{
 
             Element e = Core.scene.hit(Core.input.mouseX(), Core.input.mouseY(), true);
             if(e != null && e.isDescendantOf(this)){
-                Core.scene.setScrollFocus(this);
-            }else if(Core.scene.getScrollFocus() == this){
+                requestScroll();
+            }else if(hasScroll()){
                 Core.scene.setScrollFocus(null);
             }
         });
diff --git a/core/src/io/anuke/mindustry/ui/dialogs/CustomRulesDialog.java b/core/src/io/anuke/mindustry/ui/dialogs/CustomRulesDialog.java
index 58cf4cb4eb..10f418c1de 100644
--- a/core/src/io/anuke/mindustry/ui/dialogs/CustomRulesDialog.java
+++ b/core/src/io/anuke/mindustry/ui/dialogs/CustomRulesDialog.java
@@ -42,6 +42,8 @@ public class CustomRulesDialog extends FloatingDialog{
         main.addButton("$settings.reset", () -> {
             rules = resetter.get();
             setup();
+            requestKeyboard();
+            requestScroll();
         }).size(300f, 50f);
         main.left().defaults().fillX().left().pad(5);
         main.row();