diff --git a/ui (gen4)/features/filesystem.js b/ui (gen4)/features/filesystem.js
index 95815216..d6704587 100755
--- a/ui (gen4)/features/filesystem.js	
+++ b/ui (gen4)/features/filesystem.js	
@@ -925,7 +925,7 @@ var FileSystemWriterUIActions = actions.Actions({
 	// XXX add ability to create dirs...
 	browseSaveIndex: ['File/Save index to...', 
 		makeBrowseProxy('saveIndex', function(){
-			this.loaction.method = 'loadIndex' })],
+			this.location.method = 'loadIndex' })],
 })
 
 
diff --git a/ui (gen4)/features/history.js b/ui (gen4)/features/history.js
index 48e6876d..dbc4217f 100755
--- a/ui (gen4)/features/history.js	
+++ b/ui (gen4)/features/history.js	
@@ -336,6 +336,47 @@ module.URLHistoryLocalStorage = core.ImageGridFeatures.Feature({
 })
 
 
+// XXX
+var URLHistoryFSWriter = 
+module.URLHistoryFSWriter = core.ImageGridFeatures.Feature({
+	title: '',
+	doc: '',
+
+	tag: 'url-history-fs-writer',
+	depends: [
+		'fs-writer',
+		'url-history-local-storage',
+	],
+
+	config: {
+		'url-history-push-to-top-on-save': false,
+	},
+
+	handlers: [
+		['saveIndex',
+			function(){ 
+				// push saved to top...
+				if(this.config['url-history-push-to-top-on-save']){
+					this.pushURLToHistory()
+
+				// update...
+				} else {
+					var l = this.location
+					var e = this.url_history[l.path]
+					if(e != null){
+						e.open = l.method
+						this.saveURLHistory()
+
+					} else {
+						this.pushURLToHistory()
+					}
+				}
+			}], 
+	],
+})
+
+
+
 //---------------------------------------------------------------------
 
 var URLHistoryUIActions = actions.Actions({
diff --git a/ui (gen4)/features/meta.js b/ui (gen4)/features/meta.js
index e642674b..494559b8 100755
--- a/ui (gen4)/features/meta.js	
+++ b/ui (gen4)/features/meta.js	
@@ -76,6 +76,7 @@ core.ImageGridFeatures.Feature('viewer-testing', [
 	'config-local-storage',
 	'ui-url-hash',
 	'url-history-local-storage',
+	'url-history-fs-writer',
 	'ui-single-image-view-local-storage',
 
 
diff --git a/ui (gen4)/features/ui-status.js b/ui (gen4)/features/ui-status.js
index 8958ecfd..7ec1b631 100755
--- a/ui (gen4)/features/ui-status.js	
+++ b/ui (gen4)/features/ui-status.js	
@@ -348,7 +348,8 @@ module.StatusBar = core.ImageGridFeatures.Feature({
 	depends: [
 		'ui',
 
-		// XXX this is here to enable context menu...
+		// XXX this is here to enable context menu 
+		// 		see: StatusBarActions.__statusbar_elements__.mark(..)
 		'ui-browse-actions',
 	],
 
diff --git a/ui (gen4)/package.json b/ui (gen4)/package.json
index 008552b1..254f4c9e 100755
--- a/ui (gen4)/package.json	
+++ b/ui (gen4)/package.json	
@@ -34,5 +34,8 @@
   "devDependencies": {
     "nw-builder": "^2.2.0",
     "less": "*"
+  },
+  "scripts": {
+    "build-css": "lessc css/layout.less css/layout.css"
   }
 }