diff --git a/repository/Grafoscopio/GrafoscopioNode.class.st b/repository/Grafoscopio/GrafoscopioNode.class.st
index bfadf2c..21a9a5f 100644
--- a/repository/Grafoscopio/GrafoscopioNode.class.st
+++ b/repository/Grafoscopio/GrafoscopioNode.class.st
@@ -203,58 +203,6 @@ GrafoscopioNode >> asStonFromRoot [
 	
 ]
 
-{ #category : #initialization }
-GrafoscopioNode >> becomeDefaultTestTree [
-	| node1 node2 node3 node4 |
-	self 
-		created: DateAndTime now printString;
-		header: 'Arbol principal'.	
-	node1 := self class new
-		created: DateAndTime now printString;
-		header: 'Markup';
-		body:  'I am <b>just a node with markup</b>';
-		tagAs: 'text';
-		links: 'temp.md'.
-	node2 := self class new
-		created: DateAndTime now printString;
-		header: '%output Code';
-		tagAs: 'código';
-		body:  '(ConfigurationOfGrafoscopio>>#version14:) sourceCode'.
-	node3 := self class new
-		created: DateAndTime now printString;
-		header: '%invisible';
-		tagAs: 'text';
-		body:  '<i>Just testing</i>'.
-	node1 addNode: node3.
-	node4 := self class new
-		created: DateAndTime now printString;
-		header: 'Something';
-		tagAs: 'text';
-		body:  '<h1>else</h1>'.
-	node1 addNode: node4.
-	node1 addNode: node2.
-	self 
-		addNode: node1.
-]
-
-{ #category : #initialization }
-GrafoscopioNode >> becomeDefaultTree [
-	"I create a starting tree for all Grafoscopio notebooks with just one textual node as child."
-	| node1 |
-	self class new.
-	self
-		created: DateAndTime now printString;
-		header: 'Arbol principal';
-		tagAs: 'código'.	
-	node1 := self class new
-		created: DateAndTime now printString;
-		header: 'Node 1';
-		body:  '';
-		tagAs: 'text'.	
-	self addNode: node1.
-	^ self
-]
-
 { #category : #accessing }
 GrafoscopioNode >> body [
 	"Returns the receivers body"
@@ -1271,15 +1219,25 @@ GrafoscopioNode >> visitedGoTo: aCollection [
 
 { #category : #'as yet unclassified' }
 GrafoscopioNode >> wrapBodyLines [
-		"I convert the node body from HTML format to Pandoc's Markdown."
-	| bodyFile |	
-	(self isTaggedAs: 'código' ) ifTrue: [ ^self ].
-	bodyFile := FileLocator temp asFileReference / 'body.txt'.
-	bodyFile ensureCreateFile.
-	bodyFile writeStreamDo: [:out | out nextPutAll: self body ].
-	Smalltalk platformName = 'unix'
-		ifTrue: [ self body: (self wrapBodyLinesFor: bodyFile) ].
-	Smalltalk platformName = 'Win32'
-		ifTrue: [ self shouldBeImplemented ].
-	bodyFile ensureDelete.
+	"I convert the node body from HTML format to Pandoc's Markdown."
+
+	self wrapBodyLines: 80
+]
+
+{ #category : #'as yet unclassified' }
+GrafoscopioNode >> wrapBodyLines: aWidth [
+	"I convert the node body from HTML format to Pandoc's Markdown."
+
+	| bodyReader chunck |
+	(self isTaggedAs: 'código')
+		ifTrue: [ ^ self ].
+	bodyReader := body readStream.
+	body := String
+		streamContents: [ :bodyWriter | 
+			[ bodyReader atEnd ]
+				whileFalse: [ 
+					chunck := bodyReader next: aWidth - 1.
+					bodyWriter nextPutAll: chunck.
+					bodyReader atEnd
+						ifFalse: [ bodyWriter nextPut: Character lf ] ] ]
 ]
diff --git a/repository/Grafoscopio/GrafoscopioNodeTest.class.st b/repository/Grafoscopio/GrafoscopioNodeTest.class.st
index 7c6ff65..63dca0b 100644
--- a/repository/Grafoscopio/GrafoscopioNodeTest.class.st
+++ b/repository/Grafoscopio/GrafoscopioNodeTest.class.st
@@ -16,10 +16,44 @@ GrafoscopioNodeTest >> dummyHtml [
 	^ txt
 ]
 
+{ #category : #tests }
+GrafoscopioNodeTest >> newTestTree [
+	| node0 node1 node2 node3 node4 |
+	node0 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: 'Arbol principal'.
+	node1 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: 'Markup';
+		body: 'I am <b>just a node with markup</b>';
+		tagAs: 'text';
+		links: 'temp.md'.
+	node2 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: '%output Code';
+		tagAs: 'código';
+		body: '(ConfigurationOfGrafoscopio>>#version14:) sourceCode'.
+	node3 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: '%invisible';
+		tagAs: 'text';
+		body: '<i>Just testing</i>'.
+	node1 addNode: node3.
+	node4 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: 'Something';
+		tagAs: 'text';
+		body: '<h1>else</h1>'.
+	node1 addNode: node4.
+	node1 addNode: node2.
+	node0 addNode: node1.
+	^ node0
+]
+
 { #category : #tests }
 GrafoscopioNodeTest >> testAddingChildren [
 	| tree nnode orig | 
-	tree := GrafoscopioNode new becomeDefaultTestTree.
+	tree := self newTestTree.
 	nnode := GrafoscopioNode new.
 	orig := tree children size.
 	tree addNode: nnode.
@@ -59,7 +93,7 @@ GrafoscopioNodeTest >> testHasMarkdownSubtreesToExport [
 	result of this test is true.
 	Please see look #becomeDefaultTestTree message to see the details that makes this test true."
 	| tree | 
-	tree := GrafoscopioNode new becomeDefaultTestTree.
+	tree := self newTestTree.
 	self assert: tree selectMarkupSubtreesToExport isNotEmpty equals: true.
 	
 ]
@@ -72,7 +106,7 @@ GrafoscopioNodeTest >> testInitializeIsOk [
 { #category : #tests }
 GrafoscopioNodeTest >> testNodeSelection [
 	| tree child1 | 
-	tree := GrafoscopioNode new becomeDefaultTestTree.
+	tree := self newTestTree..
 	child1 := tree preorderTraversalRootChildren at: 1.
 	child1 selected: true.
 	self assert: tree detectSelectionIndex equals: 1
@@ -130,7 +164,7 @@ var links = tree.links(nodes);
 { #category : #tests }
 GrafoscopioNodeTest >> testRemovingChildren [
 	| tree orig | 
-	tree := GrafoscopioNode new becomeDefaultTestTree.
+	tree := self newTestTree..
 	orig := tree children size.
 	orig > 0 ifTrue: [ tree removeNode: (tree children at: 1) ].
 	self assert: tree children size equals: orig - 1.
@@ -152,7 +186,7 @@ GrafoscopioNodeTest >> testToggleNodeSelection [
 	"I verify that a selected node can be unchosen once a new selection has been done."
 
 	| tree testNode1 testNode2 |
-	tree := GrafoscopioNode new becomeDefaultTestTree.
+	tree := self newTestTree..
 	testNode1 := (tree preorderTraversalRootChildren at: 1) selected: true.
 	self assert: tree detectSelectionIndex equals: testNode1 preorderTraversalIndex.
 	testNode2 := (tree preorderTraversalRootChildren at: 2).
diff --git a/repository/Grafoscopio/GrafoscopioNotebook.class.st b/repository/Grafoscopio/GrafoscopioNotebook.class.st
index edfa7b9..9a597a8 100644
--- a/repository/Grafoscopio/GrafoscopioNotebook.class.st
+++ b/repository/Grafoscopio/GrafoscopioNotebook.class.st
@@ -154,6 +154,22 @@ GrafoscopioNotebook >> copyNodeToClipboard [
 	self notebookContent: notebook.
 ]
 
+{ #category : #persistence }
+GrafoscopioNotebook >> createNewExample [
+	| node0 node1 |
+	node0 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: 'Arbol principal';
+		tagAs: 'código'.
+	node1 := GrafoscopioNode new
+		created: DateAndTime now printString;
+		header: 'Node 1';
+		body: '';
+		tagAs: 'text'.
+	node0 addNode: node1.
+	^ node0
+]
+
 { #category : #operation }
 GrafoscopioNotebook >> currentNode [
 	| currentNode |
@@ -468,22 +484,12 @@ GrafoscopioNotebook >> importLinkContent [
 GrafoscopioNotebook >> initialize [	
 	super initialize.
 	self
-		notebook: (GrafoscopioNode new becomeDefaultTree);
+		notebook: (self createNewExample );
 		title: ' New | Grafoscopio notebook'.
 	self notebookContent: self notebook.
 
 ]
 
-{ #category : #initialization }
-GrafoscopioNotebook >> initializeDefaultTest [
-	super initialize.
-	self
-		notebook: (GrafoscopioNode new becomeDefaultTestTree);
-		title: ' New test | Grafoscopio notebook'.
-	self notebookContent: self notebook.
-
-]
-
 { #category : #initialization }
 GrafoscopioNotebook >> initializePresenter [
 	tree whenHighlightedItemChanged: [ :item |