diff --git a/Editor/Helpers/MaterialEditorHelpers.cs b/Editor/Helpers/MaterialEditorHelpers.cs
index cd03aa1..4b9df8d 100644
--- a/Editor/Helpers/MaterialEditorHelpers.cs
+++ b/Editor/Helpers/MaterialEditorHelpers.cs
@@ -81,9 +81,9 @@ namespace Misaki.ShaderGUI
         /// <param name="label">The label of the texture property.</param>
         /// <param name="textureProperty">The texture property to draw.</param>
         /// <returns>True if the texture property is not null. Otherwise, false.</returns>
-        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty)
+        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty, string keywordName = null)
         {
-            return KeywordTexturePropertySingleLine(editor, label, textureProperty, null, null);
+            return KeywordTexturePropertySingleLine(editor, label, textureProperty, null, null, keywordName);
         }
 
         /// <summary>
@@ -94,9 +94,9 @@ namespace Misaki.ShaderGUI
         /// <param name="textureProperty">The texture property to draw.</param>
         /// <param name="extraProperty">The first extra property to draw.</param>
         /// <returns>True if the texture property is not null. Otherwise, false.</returns>
-        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty, MaterialProperty extraProperty)
+        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty, MaterialProperty extraProperty, string keywordName = null)
         {
-            return KeywordTexturePropertySingleLine(editor, label, textureProperty, extraProperty, null);
+            return KeywordTexturePropertySingleLine(editor, label, textureProperty, extraProperty, null, keywordName);
         }
 
         /// <summary>
@@ -108,13 +108,13 @@ namespace Misaki.ShaderGUI
         /// <param name="extraProperty1">The first extra property to draw.</param>
         /// <param name="extraProperty2">The second extra property to draw.</param>
         /// <returns>True if the texture property is not null. Otherwise, false.</returns>
-        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty, MaterialProperty extraProperty1, MaterialProperty extraProperty2)
+        public static bool KeywordTexturePropertySingleLine(this MaterialEditor editor, GUIContent label, MaterialProperty textureProperty, MaterialProperty extraProperty1, MaterialProperty extraProperty2, string keywordName = null)
         {
             EditorGUI.BeginChangeCheck();
             editor.TexturePropertySingleLine(label, textureProperty, extraProperty1, extraProperty2);
             if (EditorGUI.EndChangeCheck())
             {
-                editor.SetKeyword(textureProperty.name.ToUpper(), textureProperty.textureValue != null);
+                editor.SetKeyword(string.IsNullOrEmpty(keywordName) ? textureProperty.name.ToUpper() : keywordName, textureProperty.textureValue != null);
             }
 
             return textureProperty.textureValue != null;
diff --git a/Editor/Helpers/MaterialPropertyHelpers.cs b/Editor/Helpers/MaterialPropertyHelpers.cs
index 6de4f81..f7c708c 100644
--- a/Editor/Helpers/MaterialPropertyHelpers.cs
+++ b/Editor/Helpers/MaterialPropertyHelpers.cs
@@ -28,5 +28,28 @@ namespace Misaki.ShaderGUI
 
             throw new NotSupportedException("Property type is not supported.");
         }
+
+        public static T GetEnumValue<T>(this MaterialProperty materialProperty) where T : Enum
+        {
+#if UNITY_6000_1_OR_NEWER
+            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Float || materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Range)
+#else
+            if (materialProperty.type == MaterialProperty.PropType.Float || materialProperty.type == MaterialProperty.PropType.Range)
+#endif
+            {
+                return (T)Enum.ToObject(typeof(T), (int)materialProperty.floatValue);
+            }
+
+#if UNITY_6000_1_OR_NEWER
+            if (materialProperty.propertyType == UnityEngine.Rendering.ShaderPropertyType.Int)
+#else
+            if (materialProperty.type == MaterialProperty.PropType.Int)
+#endif
+            {
+                return (T)Enum.ToObject(typeof(T), materialProperty.intValue);
+            }
+
+            throw new NotSupportedException("Property type is not supported.");
+        }
     }
 }
\ No newline at end of file
diff --git a/Editor/MaterialUIBlock.cs b/Editor/MaterialUIBlock.cs
index 92cdeeb..7d9bb1d 100644
--- a/Editor/MaterialUIBlock.cs
+++ b/Editor/MaterialUIBlock.cs
@@ -8,7 +8,7 @@ namespace Misaki.ShaderGUI.Packages
 {
     public abstract class MaterialUIBlock<TExpandableBit> : IMaterialUIScope where TExpandableBit : Enum, IConvertible
     {
-        private readonly MaterialPropertyContainer _propertyContainer = new();
+        protected readonly MaterialPropertyContainer propertyContainer = new();
 
         protected MaterialEditor editor;
         protected IMaterialUIScopeContainer owner;
@@ -39,13 +39,13 @@ namespace Misaki.ShaderGUI.Packages
             editor = materialEditor;
             owner = container;
 
-            LoadMaterialProperties(_propertyContainer);
+            LoadMaterialProperties(propertyContainer);
             UpdateMaterialProperties(properties);
         }
 
         public void UpdateMaterialProperties(IEnumerable<MaterialProperty> properties)
         {
-            _propertyContainer.ReloadProperties(properties);
+            propertyContainer.ReloadProperties(properties);
         }
 
         public void Draw()
diff --git a/Editor/PropertyDrawer/EnumFlagsDrawer.cs b/Editor/PropertyDrawer/EnumFlagsDrawer.cs
new file mode 100644
index 0000000..0b53c49
--- /dev/null
+++ b/Editor/PropertyDrawer/EnumFlagsDrawer.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Reflection;
+using UnityEditor;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace Misaki.ShaderGUI
+{
+    public class EnumFlagsUIDrawer : MaterialPropertyDrawer
+    {
+        private readonly Type enumType;
+
+        public EnumFlagsUIDrawer(string enumTypeName, string assemblyName)
+        {
+            enumType = Type.GetType(Assembly.CreateQualifiedName(assemblyName, enumTypeName), true);
+        }
+
+        private static bool IsPropertyTypeSuitable(MaterialProperty prop)
+        {
+#if UNITY_6000_1_OR_NEWER
+            return prop.propertyType == ShaderPropertyType.Float || prop.propertyType == ShaderPropertyType.Range || prop.propertyType == ShaderPropertyType.Int;
+#else
+            return prop.type == MaterialProperty.PropType.Float || prop.type == MaterialProperty.PropType.Range || prop.type == MaterialProperty.PropType.Float;
+#endif
+        }
+
+        public override void OnGUI(Rect position, MaterialProperty prop, GUIContent label, MaterialEditor editor)
+        {
+            if (!IsPropertyTypeSuitable(prop))
+            {
+                var c = EditorGUIUtility.TrTempContent("Toggle used on a non-float property: " + prop.name);
+                EditorGUI.LabelField(position, c, EditorStyles.helpBox);
+                return;
+            }
+
+            MaterialEditor.BeginProperty(position, prop);
+
+#if UNITY_6000_1_OR_NEWER
+            if (prop.propertyType != ShaderPropertyType.Int)
+#else
+            if (prop.type != MaterialProperty.PropType.Int)
+#endif
+            {
+                EditorGUI.BeginChangeCheck();
+
+                var value = (int)prop.floatValue;
+                EditorGUI.showMixedValue = prop.hasMixedValue;
+                var enumValue = EditorGUI.EnumFlagsField(position, label, (Enum)Enum.ToObject(enumType, value));
+                value = Convert.ToInt32(enumValue);
+                EditorGUI.showMixedValue = false;
+
+                if (EditorGUI.EndChangeCheck())
+                {
+                    prop.floatValue = value;
+                }
+            }
+            else
+            {
+                EditorGUI.BeginChangeCheck();
+
+                var value = prop.intValue;
+                EditorGUI.showMixedValue = prop.hasMixedValue;
+                var enumValue = EditorGUI.EnumFlagsField(position, label, (Enum)Enum.ToObject(enumType, value));
+                value = Convert.ToInt32(enumValue);
+
+                EditorGUI.showMixedValue = false;
+                if (EditorGUI.EndChangeCheck())
+                {
+                    prop.intValue = value;
+                }
+            }
+
+            MaterialEditor.EndProperty();
+        }
+    }
+}
diff --git a/Editor/PropertyDrawer/EnumFlagsDrawer.cs.meta b/Editor/PropertyDrawer/EnumFlagsDrawer.cs.meta
new file mode 100644
index 0000000..4c94482
--- /dev/null
+++ b/Editor/PropertyDrawer/EnumFlagsDrawer.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 44cf7877640af1d4795a4d087824f9f5
\ No newline at end of file
diff --git a/Editor/PropertyDrawer/PopupDrawer.cs b/Editor/PropertyDrawer/PopupDrawer.cs
index 4df43c1..4695ada 100644
--- a/Editor/PropertyDrawer/PopupDrawer.cs
+++ b/Editor/PropertyDrawer/PopupDrawer.cs
@@ -9,11 +9,11 @@ namespace Misaki.ShaderGUI
     {
         private static readonly GUIContent[] _options = { new("Disabled"), new("Enabled") };
 
-        protected virtual void SetKeyword(MaterialProperty prop, bool on)
+        protected virtual void OnPropertyChange(MaterialProperty prop)
         {
         }
 
-        static bool IsPropertyTypeSuitable(MaterialProperty prop)
+        private static bool IsPropertyTypeSuitable(MaterialProperty prop)
         {
 #if UNITY_6000_1_OR_NEWER
             return prop.propertyType == ShaderPropertyType.Float || prop.propertyType == ShaderPropertyType.Range || prop.propertyType == ShaderPropertyType.Int;
@@ -41,14 +41,14 @@ namespace Misaki.ShaderGUI
             {
                 EditorGUI.BeginChangeCheck();
 
-                var value = (int)Math.Abs(prop.floatValue);
+                var value = (int)Mathf.Abs(prop.floatValue);
                 EditorGUI.showMixedValue = prop.hasMixedValue;
                 value = EditorGUI.Popup(position, label, value, _options);
                 EditorGUI.showMixedValue = false;
                 if (EditorGUI.EndChangeCheck())
                 {
                     prop.floatValue = value;
-                    SetKeyword(prop, value != 0);
+                    OnPropertyChange(prop);
                 }
             }
             else
@@ -62,7 +62,7 @@ namespace Misaki.ShaderGUI
                 if (EditorGUI.EndChangeCheck())
                 {
                     prop.intValue = value;
-                    SetKeyword(prop, value != 0);
+                    OnPropertyChange(prop);
                 }
             }
 
@@ -74,7 +74,7 @@ namespace Misaki.ShaderGUI
     {
         private const string Keyword_Suffix = "_ON";
 
-        protected override void SetKeyword(MaterialProperty prop, bool on)
+        protected override void OnPropertyChange(MaterialProperty prop)
         {
             var keywordName = prop.name.ToUpper() + Keyword_Suffix;
             foreach (var target in prop.targets)
@@ -84,7 +84,52 @@ namespace Misaki.ShaderGUI
                     continue;
                 }
 
-                material.SetKeyword(new LocalKeyword(material.shader, keywordName), on);
+#if UNITY_6000_1_OR_NEWER
+                if (prop.propertyType != ShaderPropertyType.Int)
+#else
+                if (prop.type != MaterialProperty.PropType.Int)
+#endif
+                {
+                    material.SetKeyword(new LocalKeyword(material.shader, keywordName), prop.floatValue != 0);
+                }
+                else
+                {
+                    material.SetKeyword(new LocalKeyword(material.shader, keywordName), prop.intValue != 0);
+                }
+            }
+        }
+    }
+
+    public class PassPopupDrawer : PopupUIDrawer
+    {
+        private readonly string _passName;
+
+        public PassPopupDrawer(string passName)
+        {
+            _passName = passName;
+        }
+
+        protected override void OnPropertyChange(MaterialProperty prop)
+        {
+            foreach (var target in prop.targets)
+            {
+                if (target is not Material material)
+                {
+                    continue;
+                }
+
+#if UNITY_6000_1_OR_NEWER
+                if (prop.propertyType != ShaderPropertyType.Int)
+#else
+                if (prop.type != MaterialProperty.PropType.Int)
+#endif
+                {
+                    material.SetShaderPassEnabled(_passName, prop.floatValue != 0);
+                }
+                else
+                {
+                    material.SetShaderPassEnabled(_passName, prop.intValue != 0);
+                }
             }
         }
     }