diff --git a/repository/TiddlyWiki/TiddlyWiki.class.st b/repository/TiddlyWiki/TiddlyWiki.class.st
index 67240c4..89381c2 100644
--- a/repository/TiddlyWiki/TiddlyWiki.class.st
+++ b/repository/TiddlyWiki/TiddlyWiki.class.st
@@ -247,6 +247,16 @@ TiddlyWiki >> exportJSONFromRebuildedCommonTiddlers [
 	
 ]
 
+{ #category : #accessing }
+TiddlyWiki >> exportJSONFromTiddlersInSubfolder: subfolder [
+
+	| rebuildedTiddlersJSON dateNowString |
+	dateNowString := (DateAndTime now asLocalStringYMDHM copyReplaceAll: ':' with: '-') copyReplaceAll: ' ' with: '-'.
+	rebuildedTiddlersJSON := '[', (',' join: ((self rebuildTiddlersFromSubfolder: subfolder) collect: [ :each | each asJsonString ])), ']'.
+	^ MarkupFile exportAsFileOn: subfolder / 'rebuildedTiddlers', dateNowString, 'json' containing: rebuildedTiddlersJSON
+	
+]
+
 { #category : #accessing }
 TiddlyWiki >> exportJSONSubtiddlers: subtiddlersCollection [
 
@@ -259,6 +269,23 @@ TiddlyWiki >> exportJSONSubtiddlers: subtiddlersCollection as: aName [
 	^ MarkupFile exportAsFileOn: self file parent / aName, 'json' containing: (self 	jsonSubtiddlers: subtiddlersCollection)
 ]
 
+{ #category : #accessing }
+TiddlyWiki >> exportJSONTiddlersTagged: aTag in: aFolder [
+
+	| dateNowString |
+	dateNowString := (DateAndTime now asLocalStringYMDHM copyReplaceAll: ':' with: '-') copyReplaceAll: ' ' with: '-'.
+	self exportJSONTiddlersTagged: aTag in: aFolder named: (self name, '-', aTag, '-', dateNowString)
+]
+
+{ #category : #accessing }
+TiddlyWiki >> exportJSONTiddlersTagged: aTag in: aFolder named: aFileName [
+
+	| taggedTiddlers jsonString |
+	taggedTiddlers := self taggedWith: aTag.
+	jsonString := '[', (',' join: (taggedTiddlers collect: [ :each | each asJsonString ])), ']'.
+	^ MarkupFile exportAsFileOn: aFolder / (aFileName, '.json') containing: jsonString
+]
+
 { #category : #accessing }
 TiddlyWiki >> exportJSTiddlers [
 
@@ -403,6 +430,7 @@ TiddlyWiki >> importJSONLink [
 	| tiddlersJson |
 	tiddlersJson := (self remote asString, '/tiddlers.json') asUrl retrieveContents.
 	jsonFile :=  self folder / 'tiddlers.json'.
+	self name; file.
 	MarkupFile exportAsFileOn: jsonFile containing: tiddlersJson.
 	^ self fromString: tiddlersJson
 ]
@@ -568,6 +596,21 @@ TiddlyWiki >> rebuildTiddlers [
 	^ stonTiddlers
 ]
 
+{ #category : #accessing }
+TiddlyWiki >> rebuildTiddlersFromSubfolder: subfolder [
+
+	| stonTiddlers contentTiddlersFiles |
+	contentTiddlersFiles := subfolder children
+			select: [ :each | each basename endsWith: 'ston' ].
+	
+	stonTiddlers := OrderedCollection new.
+	stonTiddlers
+		addAll: (contentTiddlersFiles 
+			collect:[ :each | STONJSON fromString: each contents ]).
+	stonTiddlers collect: [ :tiddler | tiddler wiki: self ].
+	^ stonTiddlers
+]
+
 { #category : #accessing }
 TiddlyWiki >> rebuildTiddlersJSON [