diff --git a/app/src/main/java/com/annimon/hotarufx/lib/NodeValue.java b/app/src/main/java/com/annimon/hotarufx/lib/NodeValue.java
index c647371..f8d98e1 100644
--- a/app/src/main/java/com/annimon/hotarufx/lib/NodeValue.java
+++ b/app/src/main/java/com/annimon/hotarufx/lib/NodeValue.java
@@ -1,5 +1,6 @@
 package com.annimon.hotarufx.lib;
 
+import com.annimon.hotarufx.exceptions.HotaruRuntimeException;
 import com.annimon.hotarufx.exceptions.TypeException;
 import com.annimon.hotarufx.visual.Property;
 import com.annimon.hotarufx.visual.PropertyBindings;
@@ -32,24 +33,46 @@ public class NodeValue implements Value {
         return node;
     }
 
-    @SuppressWarnings("unchecked")
     public void fill(MapValue map) {
-        map.getMap().forEach((key, value) -> {
-            if (!bindings.containsKey(key)) return;
-            final Property property = bindings.get(key);
-            val timeline = property.getProperty().get();
-            val type = property.getType();
-            switch (type) {
-                case NUMBER:
-                    ((PropertyTimeline<Number>) timeline).getProperty().setValue(
-                            type.<Number>getFromHFX().apply(value));
-                    break;
-                case PAINT:
-                    ((PropertyTimeline<Paint>) timeline).getProperty().setValue(
-                            type.<Paint>getFromHFX().apply(value));
-                    break;
-            }
-        });
+        map.getMap().forEach(this::set);
+    }
+
+    @SuppressWarnings("unchecked")
+    public Value get(String key) {
+        if (!bindings.containsKey(key)) {
+            throw new HotaruRuntimeException("Unable to get property " + key + " from node value");
+        }
+        final Property property = bindings.get(key);
+        val timeline = property.getProperty().get();
+        val type = property.getType();
+        switch (type) {
+            case NUMBER:
+                return type.<Number>getToHFX().apply(
+                        ((PropertyTimeline<Number>) timeline).getProperty().getValue());
+            case PAINT:
+                return type.<Paint>getToHFX().apply(
+                        ((PropertyTimeline<Paint>) timeline).getProperty().getValue());
+            default:
+                throw new TypeException("Unknown type of node property");
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    public void set(String key, Value value) {
+        if (!bindings.containsKey(key)) return;
+        final Property property = bindings.get(key);
+        val timeline = property.getProperty().get();
+        val type = property.getType();
+        switch (type) {
+            case NUMBER:
+                ((PropertyTimeline<Number>) timeline).getProperty().setValue(
+                        type.<Number>getFromHFX().apply(value));
+                break;
+            case PAINT:
+                ((PropertyTimeline<Paint>) timeline).getProperty().setValue(
+                        type.<Paint>getFromHFX().apply(value));
+                break;
+        }
     }
 
     @Override
diff --git a/app/src/main/java/com/annimon/hotarufx/parser/visitors/InterpreterVisitor.java b/app/src/main/java/com/annimon/hotarufx/parser/visitors/InterpreterVisitor.java
index b37008d..7bad326 100644
--- a/app/src/main/java/com/annimon/hotarufx/parser/visitors/InterpreterVisitor.java
+++ b/app/src/main/java/com/annimon/hotarufx/parser/visitors/InterpreterVisitor.java
@@ -5,6 +5,7 @@ import com.annimon.hotarufx.exceptions.TypeException;
 import com.annimon.hotarufx.exceptions.VariableNotFoundException;
 import com.annimon.hotarufx.lib.Context;
 import com.annimon.hotarufx.lib.MapValue;
+import com.annimon.hotarufx.lib.NodeValue;
 import com.annimon.hotarufx.lib.NumberValue;
 import com.annimon.hotarufx.lib.StringValue;
 import com.annimon.hotarufx.lib.Types;
@@ -102,7 +103,7 @@ public class InterpreterVisitor implements ResultVisitor<Value, Context> {
     public Value get(AccessNode node, Context context) {
         Value container = node.root.accept(this, context);
         return getContainer(node.indices, context, container)
-                .orElseThrow(() -> new TypeException("Map expected", node.start(), node.end()));
+                .orElseThrow(() -> new TypeException("Unable to get property from non-accessible type", node.start(), node.end()));
     }
 
     @Override
@@ -110,14 +111,20 @@ public class InterpreterVisitor implements ResultVisitor<Value, Context> {
         Value container = node.root.accept(this, context);
         int lastIndex = node.indices.size() - 1;
         Supplier<TypeException> exceptionSupplier = () ->
-                new TypeException("Map expected", node.start(), node.end());
+                new TypeException("Unable to set property to non-accessible type", node.start(), node.end());
         container = getContainer(node.indices.subList(0, lastIndex), context, container)
                 .orElseThrow(exceptionSupplier);
         switch (container.type()) {
-            case Types.MAP:
+            case Types.MAP: {
                 val key = node.indices.get(lastIndex).accept(this, context).asString();
                 ((MapValue) container).getMap().put(key, value);
-                break;
+            } break;
+
+            case Types.NODE: {
+                val key = node.indices.get(lastIndex).accept(this, context).asString();
+                ((NodeValue) container).set(key, value);
+            } break;
+
             default:
                 throw exceptionSupplier.get();
         }
@@ -127,10 +134,16 @@ public class InterpreterVisitor implements ResultVisitor<Value, Context> {
     private Optional<Value> getContainer(List<Node> nodes, Context context, Value container) {
         for (Node index : nodes) {
             switch (container.type()) {
-                case Types.MAP:
+                case Types.MAP: {
                     val key = index.accept(this, context).asString();
                     container = ((MapValue) container).getMap().get(key);
-                    break;
+                } break;
+
+                case Types.NODE: {
+                    val key = index.accept(this, context).asString();
+                    container = ((NodeValue) container).get(key);
+                } break;
+
                 default:
                     return Optional.empty();
             }
diff --git a/app/src/main/resources/main.hfx b/app/src/main/resources/main.hfx
index 0cbdd5c..6d4c1ed 100644
--- a/app/src/main/resources/main.hfx
+++ b/app/src/main/resources/main.hfx
@@ -7,4 +7,6 @@ A = circle({
   fill: "red"
 })
 
+A.radius = 10
+
 render(A)
\ No newline at end of file