diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/SkillTreesCommand.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/SkillTreesCommand.java
index f9d06e7f..7a4d9bd4 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/SkillTreesCommand.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/SkillTreesCommand.java
@@ -15,6 +15,7 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class SkillTreesCommand extends CommandTreeRoot {
     private final Argument<SkillTree> argType;
@@ -35,7 +36,7 @@ public class SkillTreesCommand extends CommandTreeRoot {
             return CommandResult.FAILURE;
         }
 
-        final var opened = explorer.parse(argType); // null == global
+        final @Nullable var opened = explorer.parse(argType); // null == global
         if (MMOCoreUtils.callLegacyCommandEvent(data, this)) return CommandResult.FAILURE;
 
         // Global skill tree view
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/MMOCoreCommandTreeRoot.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/MMOCoreCommandTreeRoot.java
index 1642ec3d..4ea52d8d 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/MMOCoreCommandTreeRoot.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/MMOCoreCommandTreeRoot.java
@@ -7,7 +7,7 @@ import net.Indyuce.mmocore.command.builtin.mmocore.clazz.ClassCommandTreeNode;
 import net.Indyuce.mmocore.command.builtin.mmocore.debug.DebugCommandTreeNode;
 import net.Indyuce.mmocore.command.builtin.mmocore.quest.QuestCommandTreeNode;
 import net.Indyuce.mmocore.command.builtin.mmocore.skill.SkillCommandTreeNode;
-import net.Indyuce.mmocore.command.builtin.mmocore.tree.SkillTreeCommandNode;
+import net.Indyuce.mmocore.command.builtin.mmocore.skilltree.SkillTreeCommandNode;
 import net.Indyuce.mmocore.command.builtin.mmocore.waypoint.WaypointsCommandTreeNode;
 
 public class MMOCoreCommandTreeRoot extends CommandTreeRoot {
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/admin/SkillTreePointsCommandTreeNode.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/admin/SkillTreePointsCommandTreeNode.java
index 13ddc65a..0246999d 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/admin/SkillTreePointsCommandTreeNode.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/admin/SkillTreePointsCommandTreeNode.java
@@ -11,6 +11,7 @@ import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.function.BiFunction;
 
@@ -49,7 +50,7 @@ public class SkillTreePointsCommandTreeNode extends CommandTreeNode {
         public @NotNull CommandResult execute(CommandTreeExplorer explorer, CommandSender sender, String[] args) {
             final var player = explorer.parse(argPlayer);
             final var amount = explorer.parse(argAmount);
-            final var skillTree = explorer.parse(argType);
+            final @Nullable var skillTree = explorer.parse(argType);
 
             final var skillTreeName = skillTree == null ? "global" : skillTree.getId();
             final var data = PlayerData.get(player);
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/OpenCommandNode.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/OpenCommandNode.java
similarity index 70%
rename from MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/OpenCommandNode.java
rename to MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/OpenCommandNode.java
index 16420d20..82ef7a10 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/OpenCommandNode.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/OpenCommandNode.java
@@ -1,4 +1,4 @@
-package net.Indyuce.mmocore.command.builtin.mmocore.tree;
+package net.Indyuce.mmocore.command.builtin.mmocore.skilltree;
 
 import io.lumine.mythic.lib.UtilityMethods;
 import io.lumine.mythic.lib.command.CommandTreeExplorer;
@@ -11,22 +11,23 @@ import net.Indyuce.mmocore.skilltree.tree.SkillTree;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class OpenCommandNode extends CommandTreeNode {
-    private final Argument<SkillTree> argTree;
     private final Argument<Player> argPlayer;
+    private final Argument<SkillTree> argTree;
 
     public OpenCommandNode(CommandTreeNode parent) {
         super(parent, "open");
 
         argPlayer = addArgument(Argument.PLAYER);
-        argTree = addArgument(Arguments.SKILL_TREE_OR_GLOBAL);
+        argTree = addArgument(Arguments.SKILL_TREE_OR_GLOBAL).withFallback(explorer -> null);
     }
 
     @Override
     public @NotNull CommandResult execute(CommandTreeExplorer explorer, CommandSender sender, String[] args) {
         final var player = explorer.parse(argPlayer);
-        final var skillTree = explorer.parse(argTree);
+        final @Nullable var skillTree = explorer.parse(argTree);
 
         final var playerData = PlayerData.get(player);
         final var skillTrees = playerData.getProfess().getSkillTrees();
@@ -34,12 +35,20 @@ public class OpenCommandNode extends CommandTreeNode {
             return explorer.fail("Player class " + playerData.getProfess().getName() + " of " + player.getName() + " has no skill tree");
         }
 
+        final var skillTreeName = skillTree == null ? "Global" : skillTree.getName();
+
+        // Global skill tree view
+        if (skillTree == null) {
+            InventoryManager.TREE_VIEW.newInventory(playerData).open();
+            return explorer.success("Skill tree &6" + skillTreeName + "&e opened for player &6" + player.getName());
+        }
+
         // Specific skill tree view
         if (skillTrees.stream().noneMatch(candidate -> skillTree.getId().equals(candidate.getId()))) {
             return explorer.fail("Player class " + playerData.getProfess().getName() + " of " + player.getName() + " has no skill tree " + skillTree.getId());
         }
 
         InventoryManager.SPECIFIC_TREE_VIEW.get(UtilityMethods.kebabCase(skillTree.getId())).newInventory(playerData).open();
-        return explorer.success("Skill tree &6" + skillTree.getName() + "&e opened for player &6" + player.getName());
+        return explorer.success("Skill tree &6" + skillTreeName + "&e opened for player &6" + player.getName());
     }
 }
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/SkillTreeCommandNode.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/SkillTreeCommandNode.java
similarity index 69%
rename from MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/SkillTreeCommandNode.java
rename to MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/SkillTreeCommandNode.java
index bd0a86bd..9cf94dc8 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/tree/SkillTreeCommandNode.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/command/builtin/mmocore/skilltree/SkillTreeCommandNode.java
@@ -1,10 +1,10 @@
-package net.Indyuce.mmocore.command.builtin.mmocore.tree;
+package net.Indyuce.mmocore.command.builtin.mmocore.skilltree;
 
 import io.lumine.mythic.lib.command.CommandTreeNode;
 
 public class SkillTreeCommandNode extends CommandTreeNode {
     public SkillTreeCommandNode(CommandTreeNode parent) {
-        super(parent, "tree");
+        super(parent, "skill-tree");
 
         addChild(new OpenCommandNode(this));
     }