diff --git a/repository/Grafoscopio/DynamicDict.class.st b/repository/Grafoscopio/DynamicDict.class.st
new file mode 100644
index 0000000..71d08de
--- /dev/null
+++ b/repository/Grafoscopio/DynamicDict.class.st
@@ -0,0 +1,64 @@
+"
+I'm just a way to explore Spec and its documentation for learning purposes.
+"
+Class {
+	#name : #DynamicDict,
+	#superclass : #ComposableModel,
+	#instVars : [
+		'list',
+		'content'
+	],
+	#category : #'Grafoscopio-UI'
+}
+
+{ #category : #'as yet unclassified' }
+DynamicDict class >> defaultSpec [
+	<spec: #default>
+
+	^ SpecLayout composed
+		add: #list;
+		yourself
+]
+
+{ #category : #accessing }
+DynamicDict >> content [
+	^ content
+]
+
+{ #category : #accessing }
+DynamicDict >> content: anObject [
+	content := anObject
+]
+
+{ #category : #'as yet unclassified' }
+DynamicDict >> initializePresenter [
+	list whenSelectedItemChanged: [:item | 
+		self rebuildWithNewLayout.
+		
+	]
+]
+
+{ #category : #initialization }
+DynamicDict >> initializeWidgets [
+
+	| data |
+	data := { 'first' -> 'I\"m just text' . 'second' -> 'ProfStef openPharoZenWorkspace'} asOrderedDictionary.
+	list := self newList.
+	list items: data keys.
+	self focusOrder add: list.
+]
+
+{ #category : #accessing }
+DynamicDict >> list [
+	^ list
+]
+
+{ #category : #accessing }
+DynamicDict >> list: anObject [
+	list := anObject
+]
+
+{ #category : #api }
+DynamicDict >> title [
+	^'Dynamic UI | test'
+]
diff --git a/repository/Grafoscopio/GrafoscopioGUI.class.st b/repository/Grafoscopio/GrafoscopioGUI.class.st
index c94465b..b8c8519 100644
--- a/repository/Grafoscopio/GrafoscopioGUI.class.st
+++ b/repository/Grafoscopio/GrafoscopioGUI.class.st
@@ -248,9 +248,9 @@ GrafoscopioGUI >> initializeWidgets [
 	tree := self tree.
 	nodeHeader := self newTextInput.
 	nodeBody := 
-		tree selectedItem notNil
-			ifTrue: [ self updateBody ]
-			ifFalse: [nodeBody := self newText].
+		tree selectedItem 
+			ifNotNil: [ self updateBody ]
+			ifNil: [nodeBody := self newText].
 	windowMainMenu applyTo: self.
 	self focusOrder 
 		add: windowMainMenu;