diff --git a/js/model.js b/js/model.js
index fc6e9f43..11b1a5d3 100644
--- a/js/model.js
+++ b/js/model.js
@@ -416,6 +416,9 @@ function updateField(el) {
   if (value === '') {
     delete node[field];
   } else {
+    if (type === 'enum') {
+      node._changed = true;
+    }
     node[field] = value;
   }
   invalidated();
diff --git a/js/view.js b/js/view.js
index 1fd8611f..c8a26217 100644
--- a/js/view.js
+++ b/js/view.js
@@ -9,7 +9,6 @@ addListener(updateView);
 
 changeTheme(localStorage.getItem('theme'))
 function changeTheme(theme) {
-  console.log(theme);
   if (theme === null) {
     theme = 'dark';
   }
@@ -530,6 +529,12 @@ function generateField(data, field, parent, filter) {
   if (data[field.id] === undefined && field.type === 'object') {
     data[field.id] = {};
   }
+  if (field.type === 'enum' && data._changed) {
+    for (const f of field.clear || []) {
+      delete data[f];
+    }
+    delete data._changed;
+  }
   try {
     let result = generateComponent(data[field.id], field, {filter});
     if (result) {
diff --git a/locales/en.json b/locales/en.json
index 68c4e9a9..46bd0906 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -36,6 +36,7 @@
     "biome_add": "Add Biome",
     "biome_remove": "Remove Biome",
     "biome_source.biome": "Biome",
+    "biome_source.biomes": "Biomes",
     "biome_source.large_biomes": "Large Biomes",
     "biome_source.preset": "Biomes Preset",
     "biome_source.seed": "Biomes Seed",
diff --git a/schemas/worldgen.json b/schemas/worldgen.json
index ec123c50..c1f6a100 100644
--- a/schemas/worldgen.json
+++ b/schemas/worldgen.json
@@ -127,6 +127,9 @@
                     "minecraft:checkerboard",
                     "minecraft:vanilla_layered",
                     "minecraft:the_end"
+                  ],
+                  "clear": [
+                    "biomes"
                   ]
                 },
                 {
@@ -164,7 +167,16 @@
                   "values": "biome",
                   "button": "field",
                   "require": [
-                    "minecraft:multi_noise",
+                    "minecraft:multi_noise"
+                  ]
+                },
+                {
+                  "id": "biomes",
+                  "translate": "biome_source.biomes",
+                  "type": "set",
+                  "values": "biomes",
+                  "button": "field",
+                  "require": [
                     "minecraft:checkerboard"
                   ]
                 },