diff --git a/repository/Grafoscopio/GrafoscopioNotebook.class.st b/repository/Grafoscopio/GrafoscopioNotebook.class.st
index 4cc92c7..a48f5c8 100644
--- a/repository/Grafoscopio/GrafoscopioNotebook.class.st
+++ b/repository/Grafoscopio/GrafoscopioNotebook.class.st
@@ -135,13 +135,15 @@ GrafoscopioNotebook >> header: anObject [
 
 { #category : #initialization }
 GrafoscopioNotebook >> initializePresenter [
-	tree whenHighlightedItemChanged: [ :item | tree highlightedItem ifNotNil: [self updateBodyFor: item]].
+	tree whenHighlightedItemChanged: [ :item | 
+		tree highlightedItem ifNotNil: [self updateBodyFor: item]].
 	tree whenTreeUpdated: [ :item | item ifNotNil: [self updateBodyFor: item]].
 	header whenTextChanged: [ :arg |
 		(tree highlightedItem content header) = arg
 			ifFalse: [ 
 				(tree highlightedItem) content header: arg.
-				tree roots: tree roots]].
+				tree roots: tree roots.
+				self updateForSpecialHeader]].
 ]
 
 { #category : #initialization }
@@ -548,11 +550,27 @@ GrafoscopioNotebook >> updateBodyFor: aNodeContainer [
 	header text: aNode header.
 	body := self instantiate: aNode specModelClass new.
 	body content: aNode body.
-	self inform: aNode body.
 	self autoSaveBodyOf: aNode.
 	self buildWithSpecLayout: self class defaultSpec
 ]
 
+{ #category : #operation }
+GrafoscopioNotebook >> updateForSpecialHeader [
+	"I see if a node header is an ulr located at 'http://ws.stfx.eu', wich means that is a shared
+	workspace, and convert the node body to an interactive playground"
+
+	| currentNode nodeContent |
+	currentNode := tree highlightedItem.
+	currentNode ifNil: [ ^ self ].
+	nodeContent := currentNode content.
+	nodeContent header asUrl host = 'ws.stfx.eu'
+		ifFalse: [ ^ self ].
+	nodeContent
+		body: (ZnClient new get: nodeContent header);
+		tagAs: 'código'.
+	self updateBodyFor: currentNode
+]
+
 { #category : #accessing }
 GrafoscopioNotebook >> windowMainMenu [
 	^ windowMainMenu