diff --git a/js/model.js b/js/model.js
index fc2f825d..fc6e9f43 100644
--- a/js/model.js
+++ b/js/model.js
@@ -336,7 +336,7 @@ function toggleCollapseObject(el) {
   let path = getPath(el);
   let index = path.pop();
   let node = getNode(path);
-  if (!node[index]) {
+  if (typeof node[index] !== 'object') {
     node[index] = {};
   } else {
     delete node[index];
diff --git a/js/view.js b/js/view.js
index d0031ff1..29e91b3a 100644
--- a/js/view.js
+++ b/js/view.js
@@ -22,6 +22,9 @@ function updateView() {
     $('#descriptionSpan').attr('data-i18n', structure.description);
     $('title').attr('data-i18n', structure.title);
     $('#structure').append($component);
+    if (structure.id === 'worldgen') {
+      $('#versionLabel').addClass('d-none')
+    }
     if (i18next.isInitialized) {
       $('html').localize();
     }
@@ -403,14 +406,30 @@ function generateObject(data, struct, options) {
       }
     }
     if (field.collapse) {
-      let hasNoValue = data[field.id] === undefined;
+      let hasNoValue = typeof data[field.id] !== 'object';
       let arrowDirection = hasNoValue ? 'dropright' : 'dropdown'
       $body.append('<span class="' + arrowDirection + '"><button type="button" class="mt-3 btn btn-light dropdown-toggle" onclick="toggleCollapseObject(this)" data-index="' + field.id + '" data-i18n="' + field.translate + '"></button></span>');
       if (field.help) {
         $body.find('span').append(generateTooltip(field.translate));
       }
       if (hasNoValue) {
-        $body.append('<div/>');
+        if (field.values) {
+          let outValue, $field;
+          ({out: outValue, component: $field} = generateEnum(data[field.id], field));
+          out[field.id] = outValue;
+          const $selection = $($field.children()[1]);
+          const $dropdown = $body.children().last();
+          $selection.addClass('mt-3');
+          $dropdown.addClass('input-group');
+          $($dropdown.children()[0])
+            .css('border-top-right-radius', '0')
+            .css('border-bottom-right-radius', '0');
+          $selection.attr('data-type', 'enum');
+          $selection.attr('data-index', field.id);
+          $dropdown.append($selection);
+        } else {
+          $body.append('<div/>');
+        }
         continue;
       }
     }
diff --git a/locales/en.json b/locales/en.json
index 8e096ddc..37fefcb8 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -149,6 +149,16 @@
     "dimension.overworld": "Overworld",
     "dimension.the_end": "The End",
     "dimension.the_nether": "The Nether",
+    "dimension.nether": "Nether",
+    "dimension.end": "End",
+    "dimension.type": "Dimension Flags",
+    "dimension.type.ultrawarm": "Ultrawarm",
+    "dimension.type.natural": "Natural",
+    "dimension.type.shrunk": "Shrunk",
+    "dimension.type.ambient_light": "Ambient Light",
+    "dimension.type.fixed_time": "Fixed Time",
+    "dimension.type.has_skylight": "Has Skylight",
+    "dimension.type.has_ceiling": "Has Ceiling",
     "display": "Display",
     "display.icon": "Icon",
     "display.icon.item": "Icon Item",
@@ -312,7 +322,15 @@
     "generator.type": "Type",
     "generator.seed": "Dimension Seed",
     "generator.settings": "Generator Settings",
+    "generator.settings.bedrock_roof_position": "Bedrock Roof Position",
+    "generator.settings.bedrock_floor_position": "Bedrock Floor Position",
+    "generator.settings.sea_level": "Sea Level",
+    "generator.settings.disable_mob_generation": "Disable Mob Generation",
+    "generator.settings.default_block": "Default Block",
+    "generator.settings.default_fluid": "Default Fluid",
     "help.condition.time_period": "If present, time will be modulo-divided by this value. For example, if set to 24000, value will operate on a time period of days.",
+    "help.dimension.type.ultrawarm": "If true, water cannot exist and sponges will dry.",
+    "help.dimension.type.shrunk": "Whether coordinates should be scaled down by a factor of 8.",
     "help.display": "If present, advancement will be visible in the advancement tabs.",
     "help.entry.expand": "If false, entry will return all contents of tag, otherwise entry will behave as multiple item entries",
     "help.entry.type.alternatives": "Tests conditions of the child entries and executes the first that can run",
diff --git a/schemas/worldgen.json b/schemas/worldgen.json
index 766c102a..6617e2b2 100644
--- a/schemas/worldgen.json
+++ b/schemas/worldgen.json
@@ -101,16 +101,6 @@
               "translate": "generator.seed",
               "type": "int"
             },
-            {
-              "id": "settings",
-              "translate": "generator.settings",
-              "type": "enum",
-              "values": [
-                "minecraft:overworld",
-                "minecraft:nether",
-                "minecraft:end"
-              ]
-            },
             {
               "id": "biome_source",
               "type": "object",
@@ -136,6 +126,7 @@
                 {
                   "id": "preset",
                   "translate": "biome_source.preset",
+                  "translateValue": "dimension",
                   "type": "enum",
                   "unset": true,
                   "values": [
@@ -148,6 +139,117 @@
                   "type": "boolean"
                 }
               ]
+            },
+            {
+              "id": "settings",
+              "translate": "generator.settings",
+              "translateValue": "dimension",
+              "type": "object",
+              "color": "dark",
+              "collapse": true,
+              "values": [
+                "minecraft:overworld",
+                "minecraft:nether",
+                "minecraft:end"
+              ],
+              "fields": [
+                {
+                  "id": "bedrock_roof_position",
+                  "translate": "generator.settings.bedrock_roof_position",
+                  "type": "int"
+                },
+                {
+                  "id": "bedrock_floor_position",
+                  "translate": "generator.settings.bedrock_floor_position",
+                  "type": "int"
+                },
+                {
+                  "id": "sea_level",
+                  "translate": "generator.settings.sea_level",
+                  "type": "int"
+                },
+                {
+                  "id": "disable_mob_generation",
+                  "translate": "generator.settings.disable_mob_generation",
+                  "type": "boolean"
+                },
+                {
+                  "id": "default_block",
+                  "type": "object",
+                  "card": false,
+                  "fields": [
+                    {
+                      "id": "Name",
+                      "translate": "generator.settings.default_block",
+                      "type": "string"
+                    }
+                  ]
+                },
+                {
+                  "id": "default_fluid",
+                  "type": "object",
+                  "card": false,
+                  "fields": [
+                    {
+                      "id": "Name",
+                      "translate": "generator.settings.default_fluid",
+                      "type": "string"
+                    }
+                  ]
+                }
+              ]
+            }
+          ]
+        },
+        {
+          "id": "type",
+          "translate": "dimension.type",
+          "translateValue": "dimension",
+          "type": "object",
+          "color": "dark",
+          "collapse": true,
+          "values": [
+            "minecraft:overworld",
+            "minecraft:the_nether",
+            "minecraft:the_end"
+          ],
+          "fields": [
+            {
+              "id": "ultrawarm",
+              "translate": "dimension.type.ultrawarm",
+              "type": "boolean",
+              "help": true
+            },
+            {
+              "id": "natural",
+              "translate": "dimension.type.natural",
+              "type": "boolean"
+            },
+            {
+              "id": "shrunk",
+              "translate": "dimension.type.shrunk",
+              "type": "boolean",
+              "help": true
+            },
+            {
+              "id": "ambient_light",
+              "translate": "dimension.type.ambient_light",
+              "type": "float"
+            },
+            {
+              "id": "fixed_time",
+              "translate": "dimension.type.fixed_time",
+              "type": "int"
+            },
+            {
+              "id": "has_skylight",
+              "translate": "dimension.type.has_skylight",
+              "type": "boolean"
+            },
+            {
+              "id": "has_ceiling",
+              "translate": "dimension.type.has_ceiling",
+              "type": "boolean"
             }
           ]
         }
diff --git a/worldgen/index.html b/worldgen/index.html
index be98aaf8..db2d752b 100644
--- a/worldgen/index.html
+++ b/worldgen/index.html
@@ -18,6 +18,8 @@
 <body>
   <nav class="navbar navbar-expand-md navbar-dark bg-dark">
     <a id="descriptionSpan" class="navbar-brand mb-0 h1" href="../" data-i18n="description.worldgen"></a>
+    <span class="badge badge-danger">Experimental</span>
+    <span class="badge badge-danger ml-1">Unstable</span>
     <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
       <span class="navbar-toggler-icon"></span>
     </button>