Implement tags recursive addition

Source/Engine/Level/Actor.cpp

@@ -489,6 +489,13 @@ void Actor::AddTag(const Tag& tag)
     Tags.AddUnique(tag);
 }
 
+void Actor::AddTagRecursive(const Tag& tag)
+{
+    for (const auto& child : Children)
+        child->AddTagRecursive(tag);
+    Tags.AddUnique(tag);
+}
+
 PRAGMA_DISABLE_DEPRECATION_WARNINGS
 
 const String& Actor::GetTag() const

Source/Engine/Level/Actor.h

@@ -120,7 +120,7 @@ public:
     API_PROPERTY() void SetLayerName(const StringView& value);
 
     /// <summary>
-    /// Sets the name of the layer recursively for all underlying children.
+    /// Sets the name of the layer recursively for actor and for all underlying child actors.
     /// </summary>
     API_FUNCTION() void SetLayerNameRecursive(const StringView& value);
 
@@ -147,6 +147,12 @@ public:
     /// <param name="tag">The tag to add.</param>
     API_FUNCTION() void AddTag(const Tag& tag);
 
+    /// <summary>
+    /// Adds a tag to the actor and for all underlying child actors.
+    /// </summary>
+    /// <param name="tag">The tag to add.</param>
+    API_FUNCTION() void AddTagRecursive(const Tag& tag);
+
     /// <summary>
     /// Gets the name of the tag.
     /// [Deprecated in v1.5]