Merge remote-tracking branch 'origin/master' into 1.12

# Conflicts:
#	Source/Editor/Options/InterfaceOptions.cs
#	Source/Engine/Audio/OpenAL/AudioBackendOAL.cpp
#	Source/Engine/Graphics/Graphics.cpp
#	Source/Engine/GraphicsDevice/Vulkan/CmdBufferVulkan.cpp
#	Source/Engine/GraphicsDevice/Vulkan/CmdBufferVulkan.h
#	Source/Engine/GraphicsDevice/Vulkan/Config.h
#	Source/Engine/GraphicsDevice/Vulkan/GPUDeviceVulkan.cpp
#	Source/Engine/GraphicsDevice/Vulkan/GPUDeviceVulkan.h
#	Source/Engine/GraphicsDevice/Vulkan/QueueVulkan.cpp

Source/Editor/Options/InterfaceOptions.cs

@@ -161,7 +161,7 @@ namespace FlaxEditor.Options
         }
 
         /// <summary>
-        /// Options focus Game Window behaviour when play mode is entered.
+        /// Options for focus Game Window behaviour when play mode is entered.
         /// </summary>
         public enum PlayModeFocus
         {
@@ -209,6 +209,22 @@ namespace FlaxEditor.Options
             ClientSide,
         }
 
+        /// <summary>
+        /// Generic options for a disabled or hidden state. Used for example in create content button.
+        /// </summary>
+        public enum DisabledHidden
+        {
+            /// <summary>
+            /// Disabled state.
+            /// </summary>
+            Disabled,
+
+            /// <summary>
+            /// Hidden state.
+            /// </summary>
+            Hidden,
+        }
+
         /// <summary>
         /// Gets or sets the Editor User Interface scale. Applied to all UI elements, windows and text. Can be used to scale the interface up on a bigger display. Editor restart required.
         /// </summary>
@@ -562,6 +578,13 @@ namespace FlaxEditor.Options
         [EditorDisplay("Visject", "Warn when deleting used parameter"), EditorOrder(552)]
         public bool WarnOnDeletingUsedVisjectParameter { get; set; } = true;
 
+        /// <summary>
+        /// Gets or sets a value indicating what should happen to unavaliable options in the content create menu.
+        /// </summary>
+        [DefaultValue(DisabledHidden.Hidden)]
+        [EditorDisplay("Content"), EditorOrder(600)]
+        public DisabledHidden UnavaliableContentCreateOptions { get; set; } = DisabledHidden.Hidden;
+
         private static FontAsset DefaultFont => FlaxEngine.Content.LoadAsyncInternal<FontAsset>(EditorAssets.PrimaryFont);
         private static FontAsset ConsoleFont => FlaxEngine.Content.LoadAsyncInternal<FontAsset>(EditorAssets.InconsolataRegularFont);