diff --git a/SConstruct b/SConstruct
index 7299511..3934907 100644
--- a/SConstruct
+++ b/SConstruct
@@ -116,6 +116,12 @@ opts.Add(EnumVariable(
     "armv7",
     ["armv7","arm64v8","x86","x86_64"]
 ))
+opts.Add(EnumVariable(
+    "arch",
+    "Target MacOS architecture",
+    "arm64",
+    ["arm64", "x86_64"]
+))
 opts.Add(EnumVariable(
     "ios_arch",
     "Target iOS architecture",
@@ -231,7 +237,7 @@ elif env["platform"] == "macos":
     if env["target"] == "debug":
         env.Append(CCFLAGS=["-Og", "-g"])
     elif env["target"] == "release":
-        env.Append(CCFLAGS=["-Ofast"])
+        env.Append(CCFLAGS=["-Ofast", "-Os"])
 
     target_path = "libgdflexbox.dylib"
 
diff --git a/src/flexbox.cpp b/src/flexbox.cpp
index 7c88b31..67e5b8c 100644
--- a/src/flexbox.cpp
+++ b/src/flexbox.cpp
@@ -403,6 +403,16 @@ void Flexbox::remove_child(Flexbox *child)
     YGNodeRemoveChild(m_node, child->m_node);
 }
 
+void Flexbox::remove_all_children(void)
+{
+    YGNodeRemoveAllChildren(m_node);
+}
+
+void Flexbox::swap_child(Flexbox *child, unsigned index)
+{
+    YGNodeSwapChild(m_node, child->m_node, index);
+}
+
 unsigned Flexbox::get_child_count(void) const
 {
     return YGNodeGetChildCount(m_node);
@@ -658,6 +668,8 @@ void Flexbox::_bind_methods()
 
     ClassDB::bind_method(D_METHOD("insert_child"), &Flexbox::insert_child);
     ClassDB::bind_method(D_METHOD("remove_child"), &Flexbox::remove_child);
+    ClassDB::bind_method(D_METHOD("remove_all_children"), &Flexbox::remove_all_children);
+    ClassDB::bind_method(D_METHOD("swap_child"), &Flexbox::swap_child);
     ClassDB::bind_method(D_METHOD("get_child_count"), &Flexbox::get_child_count);
     ClassDB::bind_method(D_METHOD("get_child"), &Flexbox::get_child);
 
diff --git a/src/flexbox.h b/src/flexbox.h
index 95e16f9..427c1af 100644
--- a/src/flexbox.h
+++ b/src/flexbox.h
@@ -115,6 +115,8 @@ class Flexbox : public RefCounted
 public: // Tree hierarchy mutators
     void insert_child(Flexbox *child, unsigned index);
     void remove_child(Flexbox *child);
+    void remove_all_children(void);
+    void swap_child(Flexbox *child, unsigned index);
 
 public: // Tree hierarchy inspectors
     unsigned get_child_count(void) const;