diff --git a/src/Pyramid-Bloc/PyramidSaveModelVerifier.class.st b/src/Pyramid-Bloc/PyramidSaveModelVerifier.class.st
index 50b6bbbd..d8425326 100644
--- a/src/Pyramid-Bloc/PyramidSaveModelVerifier.class.st
+++ b/src/Pyramid-Bloc/PyramidSaveModelVerifier.class.st
@@ -50,7 +50,6 @@ PyramidSaveModelVerifier class >> methodIsValid [
 		  verifyBlock: [ :model | model savingMethodName isValidSelector ];
 		  showBlock: [ :view | view showMethodIsNotValidError ];
 		  yourself.
-		  
 ]
 
 { #category : #constructor }
diff --git a/src/Pyramid-Bloc/PyramidShowCodePlugin.class.st b/src/Pyramid-Bloc/PyramidShowCodePlugin.class.st
new file mode 100644
index 00000000..3093f8bd
--- /dev/null
+++ b/src/Pyramid-Bloc/PyramidShowCodePlugin.class.st
@@ -0,0 +1,147 @@
+Class {
+	#name : #PyramidShowCodePlugin,
+	#superclass : #Object,
+	#traits : 'TPyramidPlugin',
+	#classTraits : 'TPyramidPlugin classTrait',
+	#instVars : [
+		'codePresenterForAll',
+		'codePresenterForSelection',
+		'projectModel'
+	],
+	#category : #'Pyramid-Bloc-plugin-showcode'
+}
+
+{ #category : #adding }
+PyramidShowCodePlugin >> addPanelsOn: aPyramidSimpleWindow [
+
+	aPyramidSimpleWindow at: #tabLeft addItem: [ :builder |
+			builder
+				makeTab: self codePresenterForAll
+				label: 'Code for all'
+				icon: (Smalltalk ui icons iconNamed: #page)
+				order: 5 ].
+	aPyramidSimpleWindow at: #tabRight addItem: [ :builder |
+			builder
+				makeTab: self codePresenterForSelection
+				label: 'Code for selection'
+				icon: (Smalltalk ui icons iconNamed: #page)
+				order: 999 ]
+]
+
+{ #category : #accessing }
+PyramidShowCodePlugin >> codePresenterForAll [
+
+	^ codePresenterForAll
+]
+
+{ #category : #accessing }
+PyramidShowCodePlugin >> codePresenterForSelection [
+
+	^ codePresenterForSelection
+]
+
+{ #category : #connecting }
+PyramidShowCodePlugin >> connectOn: aPyramidEditor [
+
+	projectModel := aPyramidEditor projectModel.
+	aPyramidEditor projectModel announcer
+		when: PyramidElementsChangedEvent
+		do: [ :evt | self elementsChanged: evt ]
+		for: self.
+	aPyramidEditor projectModel announcer
+		when: PyramidFirstLevelElementsChangedEvent
+		do: [ :evt | self firstLevelElementsChanged: evt ]
+		for: self.
+	aPyramidEditor projectModel announcer
+		when: PyramidSelectionChangedEvent
+		do: [ :evt | self selectionChanged: evt ]
+		for: self
+]
+
+{ #category : #'as yet unclassified' }
+PyramidShowCodePlugin >> elementsChanged: aPyramidElementsChangedEvent [
+
+	self firstLevelElementsChanged: aPyramidElementsChangedEvent.
+	self selectionChanged: aPyramidElementsChangedEvent
+]
+
+{ #category : #'as yet unclassified' }
+PyramidShowCodePlugin >> firstLevelElementsChanged: aPyramidFirstLevelElementsChangedEvent [
+
+	self codePresenterForAll text: (Stash new serialize:
+			 aPyramidFirstLevelElementsChangedEvent firstLevelElements)
+]
+
+{ #category : #initialization }
+PyramidShowCodePlugin >> initialize [
+
+	super initialize.
+	codePresenterForAll := SpCodePresenter new
+		                             beForScripting;
+		                             whenSubmitDo: [ :text |
+			                             self validateCodeForAll: text ];
+		                             yourself.
+	codePresenterForSelection := SpCodePresenter new
+		                             beForScripting;
+		                             whenSubmitDo: [ :text |
+			                             self validateCodeForSelection: text ];
+		                             yourself
+]
+
+{ #category : #accessing }
+PyramidShowCodePlugin >> projectModel [
+
+	^ projectModel
+]
+
+{ #category : #'event handling' }
+PyramidShowCodePlugin >> selectionChanged: aPyramidSelectionChangedEvent [
+
+	self codePresenterForSelection text: ''.
+	aPyramidSelectionChangedEvent selection ifEmpty: [
+			self codePresenterForSelection text: '"Select one element."'.
+			^ self ].
+	aPyramidSelectionChangedEvent selection size > 2 ifTrue: [
+			self codePresenterForSelection text: '"Select only one element."'.
+			^ self ].
+	self codePresenterForSelection text: (Stash new serialize:
+			 aPyramidSelectionChangedEvent selection first)
+]
+
+{ #category : #'as yet unclassified' }
+PyramidShowCodePlugin >> validateCodeForAll: aString [
+
+	| collection |
+	collection := Stash new materialize: aString.
+	collection isCollection ifFalse: [
+		^ self inform: 'Could not serialize: The code is not a collection.' ].
+	(collection allSatisfy: [ :each | each isKindOf: BlElement ])
+		ifFalse: [
+			^ self inform:
+				  'Could not serialize: Not BlElement found in the code.' ].
+	self projectModel firstLevelElements replaceAll: collection.
+	self projectModel updateSelection
+]
+
+{ #category : #'as yet unclassified' }
+PyramidShowCodePlugin >> validateCodeForSelection: aString [
+
+	| newElement currentSelection |
+	newElement := Stash new materialize: aString.
+	(newElement isKindOf: BlElement) ifFalse: [
+		^ self inform: 'Could not serialize: The code is not a BlElement.' ].
+	self projectModel selection size = 1 ifFalse: [
+			^ self inform:
+				  'Could not serialize: The selection should only contains one element.' ].
+	currentSelection := self projectModel selection first.
+	(self projectModel firstLevelElements includes: currentSelection)
+		ifTrue: [
+				self projectModel firstLevelElements replaceAll:
+					(self projectModel firstLevelElements asArray
+						 copyReplaceAll: { currentSelection }
+						 with: { newElement }) ].
+	currentSelection parent ifNotNil: [ :p |
+		p replaceChild: currentSelection with: newElement ].
+
+	self projectModel selection replaceAll: { newElement }
+]