diff --git a/src/main/java/net/mcreator/customoregen/OresCommand.java b/src/main/java/net/mcreator/customoregen/OresCommand.java
index 242b018c6..88d96d6c9 100644
--- a/src/main/java/net/mcreator/customoregen/OresCommand.java
+++ b/src/main/java/net/mcreator/customoregen/OresCommand.java
@@ -65,10 +65,13 @@ public class OresCommand {
 	public static void onRegisterCommands(RegisterCommandsEvent event) {
 		CommandDispatcher<CommandSourceStack> dispatcher = event.getDispatcher();
 
+		// Niveau de permission 2 = OP (Admin level)
 		dispatcher.register(Commands.literal("ores")
+				.requires(source -> source.hasPermission(2))
 				.executes(OresCommand::executeOres));
 
 		dispatcher.register(Commands.literal("ore")
+				.requires(source -> source.hasPermission(2))
 				.executes(OresCommand::executeOres));
 	}
 
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_cold_biomes_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_cold_biomes_ores.json
new file mode 100644
index 000000000..91473c3e4
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_cold_biomes_ores.json
@@ -0,0 +1,10 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": "#custom_ore_gen:cold_biomes",
+    "features": [
+        "custom_ore_gen:lapisore",
+        "custom_ore_gen:deepslatelapisore",
+        "custom_ore_gen:deepslatediamondore"
+    ],
+    "step": "underground_ores"
+}
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_custom_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_custom_ores.json
deleted file mode 100644
index 0d9da3856..000000000
--- a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_custom_ores.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-    "type": "neoforge:add_features",
-    "biomes": "#minecraft:is_overworld",
-    "features": [
-        "custom_ore_gen:sharddiamondblockore",
-        "custom_ore_gen:puregoldenore",
-        "custom_ore_gen:deepslatepuregoldenore",
-        "custom_ore_gen:concentratedcoalore",
-        "custom_ore_gen:deepslatesharddiamondore",
-        "custom_ore_gen:deepslatediamondore",
-        "custom_ore_gen:lapisore",
-        "custom_ore_gen:deepslatelapisore",
-        "custom_ore_gen:redstoneore",
-        "custom_ore_gen:deepslateredstoneore",
-        "custom_ore_gen:copperhighore",
-        "custom_ore_gen:copperlowerore",
-        "custom_ore_gen:highemeraldore",
-        "custom_ore_gen:loweremeraldore",
-        "custom_ore_gen:ironore",
-        "custom_ore_gen:deepslateironore"
-    ],
-    "step": "underground_ores"
-}
\ No newline at end of file
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_hot_biomes_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_hot_biomes_ores.json
new file mode 100644
index 000000000..c0df5e8bb
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_hot_biomes_ores.json
@@ -0,0 +1,13 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": "#custom_ore_gen:hot_biomes",
+    "features": [
+        "custom_ore_gen:puregoldenore",
+        "custom_ore_gen:deepslatepuregoldenore",
+        "custom_ore_gen:copperhighore",
+        "custom_ore_gen:copperlowerore",
+        "custom_ore_gen:redstoneore",
+        "custom_ore_gen:deepslateredstoneore"
+    ],
+    "step": "underground_ores"
+}
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_mountain_biomes_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_mountain_biomes_ores.json
new file mode 100644
index 000000000..af566603b
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_mountain_biomes_ores.json
@@ -0,0 +1,8 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": "#custom_ore_gen:mountain_biomes",
+    "features": [
+        "custom_ore_gen:highemeraldore"
+    ],
+    "step": "underground_ores"
+}
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_rare_biomes_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_rare_biomes_ores.json
new file mode 100644
index 000000000..8304a38b3
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_rare_biomes_ores.json
@@ -0,0 +1,8 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": "#custom_ore_gen:rare_biomes",
+    "features": [
+        "custom_ore_gen:loweremeraldore"
+    ],
+    "step": "underground_ores"
+}
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_shard_diamond_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_shard_diamond_ores.json
new file mode 100644
index 000000000..db42f13b7
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_shard_diamond_ores.json
@@ -0,0 +1,11 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": {
+        "type": "neoforge:any"
+    },
+    "features": [
+        "custom_ore_gen:sharddiamondblockore",
+        "custom_ore_gen:deepslatesharddiamondore"
+    ],
+    "step": "underground_ores"
+}
diff --git a/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_tempered_biomes_ores.json b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_tempered_biomes_ores.json
new file mode 100644
index 000000000..2693036aa
--- /dev/null
+++ b/src/main/resources/data/custom_ore_gen/neoforge/biome_modifier/add_tempered_biomes_ores.json
@@ -0,0 +1,10 @@
+{
+    "type": "neoforge:add_features",
+    "biomes": "#custom_ore_gen:tempered_biomes",
+    "features": [
+        "custom_ore_gen:ironore",
+        "custom_ore_gen:deepslateironore",
+        "custom_ore_gen:concentratedcoalore"
+    ],
+    "step": "underground_ores"
+}