diff --git a/ui (gen4)/features/all.js b/ui (gen4)/features/all.js
index 46ab04be..5dc506ac 100755
--- a/ui (gen4)/features/all.js	
+++ b/ui (gen4)/features/all.js	
@@ -21,6 +21,7 @@ require('features/ui')
 require('features/ui-partial-ribbons')
 require('features/ui-single-image')
 require('features/ui-chrome')
+require('features/ui-progress')
 require('features/keyboard')
 require('features/ui-status')
 require('features/ui-marks')
diff --git a/ui (gen4)/features/filesystem.js b/ui (gen4)/features/filesystem.js
index de2eec7d..40c4f461 100755
--- a/ui (gen4)/features/filesystem.js	
+++ b/ui (gen4)/features/filesystem.js	
@@ -366,6 +366,7 @@ var FileSystemLoaderActions = actions.Actions({
 			var that = this
 			// XXX get a logger...
 			logger = logger || this.logger
+			logger = logger && logger.push('Load')
 
 			if(path == null){
 				return
@@ -570,6 +571,7 @@ var FileSystemLoaderActions = actions.Actions({
 
 			// XXX get a logger...
 			logger = logger || this.logger
+			//logger = logger && logger.push('getImagesInPath')
 
 			var that = this
 			path = util.normalizePath(path)
@@ -641,6 +643,7 @@ var FileSystemLoaderActions = actions.Actions({
 				return
 			}
 			logger = logger || this.logger
+			logger = logger && logger.push('Load images')
 
 			var that = this
 			path = util.normalizePath(path)
@@ -692,6 +695,7 @@ var FileSystemLoaderActions = actions.Actions({
 
 			var that = this
 			logger = logger || this.logger
+			logger = logger && logger.push('Load new images')
 			path = util.normalizePath(path)
 
 			// cache the loaded images...
@@ -1105,6 +1109,7 @@ var FileSystemCommentsActions = actions.Actions({
 			}
 
 			logger = logger || this.logger
+			logger = logger && logger.push('saveComments')
 
 			var path = this.location.path
 			var comments_dir = this.config['index-dir'] +'/comments'
@@ -1126,6 +1131,7 @@ var FileSystemCommentsActions = actions.Actions({
 			}
 
 			logger = logger || this.logger
+			logger = logger && logger.push('Load comments')
 
 			var that = this
 			var loaded = this.location.loaded
@@ -1746,6 +1752,7 @@ var FileSystemWriterActions = actions.Actions({
 			var that = this
 			// XXX get a logger...
 			logger = logger || this.logger
+			logger = logger && logger.push('Save')
 
 			path = path || this.location.loaded
 			path = path && path.length == 1 ? path[0] : path 
@@ -1830,6 +1837,7 @@ var FileSystemWriterActions = actions.Actions({
 	exportIndex: ['- File/Export/Export index',
 		function(path, max_size, include_orig, logger){
 			logger = logger || this.logger
+			logger = logger && logger.push('Export index')
 
 			max_size = parseInt(max_size || this.config['export-preview-size-limit']) || null
 			// XXX make this dependant on max_size....
@@ -1953,7 +1961,8 @@ var FileSystemWriterActions = actions.Actions({
 					index_path, 
 					index.date,
 					this.config['index-filename-template'], 
-					logger || this.logger)
+					logger)
+					//logger || this.logger)
 				// set hidden file attribute on Windows...
 				.then(function(){
 					typeof(process) != 'undefined' 
@@ -1996,6 +2005,7 @@ var FileSystemWriterActions = actions.Actions({
 	exportDirs: ['- File/Export/Export ribbons as directories',
 		function(path, pattern, level_dir, size, logger){
 			logger = logger || this.logger
+			logger = logger && logger.push('Export dirs')
 			var that = this
 			var base_dir = this.location.path
 
diff --git a/ui (gen4)/features/meta.js b/ui (gen4)/features/meta.js
index 270b8c9e..66d79bc8 100755
--- a/ui (gen4)/features/meta.js	
+++ b/ui (gen4)/features/meta.js	
@@ -81,6 +81,7 @@ core.ImageGridFeatures.Feature('viewer-testing', [
 	'external-editor',
 
 	// chrome...
+	'ui-progress',
 	'ui-status-log',
 	'ui-scale',
 	'ui-animation',
diff --git a/ui (gen4)/features/ui-progress.js b/ui (gen4)/features/ui-progress.js
new file mode 100755
index 00000000..2331e907
--- /dev/null
+++ b/ui (gen4)/features/ui-progress.js	
@@ -0,0 +1,162 @@
+/**********************************************************************
+* 
+*
+*
+**********************************************************************/
+((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)(
+function(require){ var module={} // makes module AMD/node compatible...
+/*********************************************************************/
+
+var actions = require('lib/actions')
+var features = require('lib/features')
+
+var core = require('features/core')
+
+
+
+/*********************************************************************/
+
+var ProgressActions = actions.Actions({
+	config: {
+		'progress-fade-duration': 200,
+		'progress-done-delay': 1000,
+	},
+
+	// Progress bar widget...
+	//
+	// 	Create progress bar...
+	// 	.testProgress('text')
+	//
+	// 	Update progress bar (value, max, msg)...
+	// 	.testProgress('text', 0, 10)
+	// 	.testProgress('text', 10, 50, 'message')
+	//
+	// 	Update progress bar value (has no effect if max is not set)...
+	// 	.testProgress('text', 10)
+	//
+	// 	Close progress bar...
+	// 	.testProgress('text', 'close')
+	//
+	// 	Relative progress modification...
+	// 	.testProgress('text', '+1')
+	// 	.testProgress('text', '+0', '+1')
+	//
+	//
+	// XXX move configuration to .config
+	// XXX should we report errors and stoppages??? (error state??)
+	// XXX multiple containers...
+	// XXX shorten the nested class names...
+	// XXX revise styles...
+	showProgress: ['- Interface/Show progress bar...',
+		function(text, value, max){
+			var viewer = this.ribbons.viewer
+			var that = this
+
+			var msg = text instanceof Array ? text.slice(1).join(': ') : null
+			text = text instanceof Array ? text[0] : text
+
+			// container...
+			var container = viewer.find('.progress-container')
+			container = container.length == 0 ?
+				$('<div/>')
+					.addClass('progress-container')
+					.appendTo(viewer)
+				: container
+
+			// widget...
+			var widget = container.find('.progress-bar[name="'+text+'"]')
+			// close action...
+			if(value == 'close'){
+				widget.trigger('progressClose')
+				return
+			}
+			widget = widget.length == 0 ?
+				$('<div/>')
+					.addClass('progress-bar')
+					.attr('name', text)
+					.text(text)
+					// close button...
+					.append($('<span class="close">&times;</span>')
+						.on('click', function(){ widget.trigger('progressClose') }))
+					// state...
+					.append($('<span/>')
+						.addClass('progress-details'))
+					// bar...
+					.append($('<progress/>'))
+					// events...
+					.on('progressClose', function(){ 
+						widget
+							.fadeOut(that.config['progress-fade-duration'] || 200, function(){
+								$(this).remove() 
+							})
+					})
+					.appendTo(container)
+				: widget
+
+			// reset closing timeout...
+			var timeout = widget.attr('close-timeout')
+			timeout && clearTimeout(JSON.parse(timeout))
+
+			// get the widget parts we are updating...
+			var bar = widget.find('progress')
+			var state = widget.find('.progress-details')
+
+			// XXX stub???
+			// normalize max and value...
+			max = max != null ? 
+					(typeof(max) == typeof('str') && /[+-][0-9]+/.test(max) ? 
+						parseInt(bar.attr('max') || 0) + parseInt(max)
+					: parseInt(max))
+				: bar.attr('max')
+			value = value != null ? 
+					(typeof(value) == typeof('str') && /[+-][0-9]+/.test(value) ? 
+						parseInt(bar.attr('value') || 0) + parseInt(value)
+					: parseInt(value))
+				: bar.attr('value')
+
+			// format the message...
+			msg = msg ? ': '+msg : ''
+			msg = ' '+ msg 
+				//+ (value && value >= (max || 0) ? ' ('+value+' done)' 
+				+ (value && value >= (max || 0) ? ' (done)' 
+					: value && max && value != max ? ' ('+ value +' of '+ max +')'
+					: '...')
+
+			// update widget...
+			bar.attr({
+				value: value || '',
+				max: max || '',
+			})
+			state.text(msg)
+
+			// auto-close...
+			// XXX make this optional... 
+			if(value && value >= (max || 0)){
+				widget.attr('close-timeout', 
+					JSON.stringify(setTimeout(function(){ 
+						widget.trigger('progressClose') 
+					}, this.config['progress-done-delay'] || 1000)))
+			}
+
+			// XXX what should we return??? (state, self, controller?)
+		}],
+})
+
+var Progress = 
+module.Progress = core.ImageGridFeatures.Feature({
+	title: '',
+	doc: '',
+
+	tag: 'ui-progress',
+	depends: [
+		'ui',
+	],
+
+	actions: ProgressActions, 
+})
+
+
+
+
+/**********************************************************************
+* vim:set ts=4 sw=4 :                               */ return module })
diff --git a/ui (gen4)/features/ui-widgets.js b/ui (gen4)/features/ui-widgets.js
index f85d53e1..255c8a73 100755
--- a/ui (gen4)/features/ui-widgets.js	
+++ b/ui (gen4)/features/ui-widgets.js	
@@ -1111,121 +1111,6 @@ var WidgetTestActions = actions.Actions({
 		})],
 
 
-	// Progress bar widget...
-	//
-	// 	Create progress bar...
-	// 	.testProgress('text')
-	//
-	// 	Update progress bar (value, max, msg)...
-	// 	.testProgress('text', 0, 10)
-	// 	.testProgress('text', 10, 50, 'message')
-	//
-	// 	Update progress bar value (has no effect if max is not set)...
-	// 	.testProgress('text', 10)
-	//
-	// 	Close progress bar...
-	// 	.testProgress('text', 'close')
-	//
-	// 	Relative progress modification...
-	// 	.testProgress('text', '+1')
-	// 	.testProgress('text', '+0', '+1')
-	//
-	//
-	// XXX should we report errors and stoppages??? (error state??)
-	// XXX multiple containers...
-	// XXX shorten the nested class names...
-	// XXX revise styles...
-	showProgress: ['- Interface/Show progress bar...',
-		function(text, value, max){
-			var viewer = this.ribbons.viewer
-
-			var msg = text instanceof Array ? text.slice(1).join(': ') : null
-			text = text instanceof Array ? text[0] : text
-
-			// container...
-			var container = viewer.find('.progress-container')
-			container = container.length == 0 ?
-				$('<div/>')
-					.addClass('progress-container')
-					.appendTo(viewer)
-				: container
-
-			// widget...
-			var widget = container.find('.progress-bar[name="'+text+'"]')
-			// close action...
-			if(value == 'close'){
-				widget.trigger('progressClose')
-				return
-			}
-			widget = widget.length == 0 ?
-				$('<div/>')
-					.addClass('progress-bar')
-					.attr('name', text)
-					.text(text)
-					// close button...
-					.append($('<span class="close">&times;</span>')
-						.on('click', function(){ widget.trigger('progressClose') }))
-					// state...
-					.append($('<span/>')
-						.addClass('progress-details'))
-					// bar...
-					.append($('<progress/>'))
-					// events...
-					.on('progressClose', function(){ 
-						widget
-							.fadeOut(200, function(){
-								$(this).remove() 
-							})
-					})
-					.appendTo(container)
-				: widget
-
-			// reset closing timeout...
-			var timeout = widget.attr('close-timeout')
-			timeout && clearTimeout(JSON.parse(timeout))
-
-			// get the widget parts we are updating...
-			var bar = widget.find('progress')
-			var state = widget.find('.progress-details')
-
-			// XXX stub???
-			// normalize max and value...
-			max = max != null ? 
-					(typeof(max) == typeof('str') && /[+-][0-9]+/.test(max) ? 
-						parseInt(bar.attr('max') || 0) + parseInt(max)
-					: parseInt(max))
-				: bar.attr('max')
-			value = value != null ? 
-					(typeof(value) == typeof('str') && /[+-][0-9]+/.test(value) ? 
-						parseInt(bar.attr('value') || 0) + parseInt(value)
-					: parseInt(value))
-				: bar.attr('value')
-
-			// format the message...
-			msg = msg ? ': '+msg : ''
-			msg = ' '+ msg 
-				+ (value && value >= (max || 0) ? ' ('+value+' done)' 
-					: value && max && value != max ? ' ('+ value +' of '+ max +')'
-					: ' (ready)')
-
-			// update widget...
-			bar.attr({
-				value: value || '',
-				max: max || '',
-			})
-			state.text(msg)
-
-			// auto-close...
-			// XXX make this optional... 
-			if(value && value >= (max || 0)){
-				widget.attr('close-timeout', 
-					JSON.stringify(setTimeout(function(){ 
-						widget.trigger('progressClose') 
-					}, 1000)))
-			}
-
-			// XXX what should we return??? (state, self, controller?)
-		}],
 	testProgress: ['Test/Demo progress bar...',
 		function(text){
 			var done = 0
diff --git a/ui (gen4)/imagegrid/file.js b/ui (gen4)/imagegrid/file.js
index 3d797756..3c9e5def 100755
--- a/ui (gen4)/imagegrid/file.js	
+++ b/ui (gen4)/imagegrid/file.js	
@@ -40,6 +40,8 @@ var INDEX_DIR = '.ImageGrid'
 // Skip nested indexes from tree...
 //
 var skipNested = function(paths, index_dir, logger){
+	logger = logger && logger.push('Skipping nested')
+
 	paths = paths
 		.map(function(p){ return p.split(index_dir).shift() })
 		.sort(function(a, b){ return a.length - b.length })
@@ -107,6 +109,8 @@ function(base, index_dir){
 var getIndexes =
 module.getIndexes = 
 function(base, index_dir, logger){
+	logger = logger && logger.push('Searching')
+
 	return new Promise(function(resolve, reject){
 		listIndexes(base, index_dir)
 			.on('error', function(err){
@@ -243,6 +247,8 @@ function(list){
 var groupByKeyword = 
 module.groupByKeyword = 
 function(list, from_date, logger){
+	logger = logger && logger.push('Grouping by keyword')
+
 	var index = {}
 	var queued = 0
 
@@ -328,6 +334,8 @@ function(list, from_date, logger){
 var loadSaveHistoryList =
 module.loadSaveHistoryList =
 function(path, index_dir, logger){
+	logger = logger && logger.push('Save history')
+
 	path = util.normalizePath(path)
 	index_dir = index_dir || INDEX_DIR
 
@@ -467,6 +475,8 @@ function(path, index_dir, logger){
 var loadIndex =
 module.loadIndex = 
 function(path, index_dir, from_date, logger){
+	logger = logger && logger.push('Index')
+
 	path = util.normalizePath(path)
 
 	if(index_dir && index_dir.emit != null){
@@ -921,6 +931,8 @@ var FILENAME = '${DATE}-${KEYWORD}.${EXT}'
 var writeIndex =
 module.writeIndex = 
 function(json, path, date, filename_tpl, logger){
+	logger = logger && logger.push('Index')
+
 	path = util.normalizePath(path)
 	filename_tpl = filename_tpl || FILENAME
 	// XXX for some reason this gets the unpatched node.js Date, so we 
diff --git a/ui (gen4)/ui.js b/ui (gen4)/ui.js
index 7945d767..632d3b34 100755
--- a/ui (gen4)/ui.js	
+++ b/ui (gen4)/ui.js	
@@ -143,19 +143,44 @@ $(function(){
 		ig.features.features.length, 
 		ig.features.features)
 
-	ig.logger = ig.logger || {emit: function(e, v){ 
-		console.log('    ', e, v) 
-		
-		// XXX HACK -- need meaningful status...
-		if(e == 'queued' 
-				|| e == 'found'){
-			ig.showProgress('Progress', '+0', '+1')
+	// XXX STUB...
+	ig.logger = ig.logger || {
+		root: true,
+		message: null,
 
-		} else if(e == 'loaded' || e == 'done' || e == 'written' 
-				|| e == 'skipping' || e == 'index'){
-			ig.showProgress('Progress', '+1')
-		}
-	}}
+		emit: function(e, v){ 
+			var msg = this.message
+
+			// console...
+			console.log('    '+ ((msg && msg.concat('')) || []).join(': '), e, v) 
+			
+			// progress...
+			// XXX HACK -- need meaningful status...
+			if(e == 'queued' 
+					|| e == 'found'){
+				ig.showProgress(msg || ['Progress', e], '+0', '+1')
+
+			} else if(e == 'loaded' || e == 'done' || e == 'written' 
+					|| e == 'skipping' || e == 'index'){
+				ig.showProgress(msg || ['Progress', e], '+1')
+			}
+		},
+
+		push: function(msg){
+			if(msg == null){
+				return this
+			}
+
+			var logger = Object.create(this)
+			logger.root = false
+			logger.message = logger.message == null ? [msg] : logger.message.concat([msg])
+
+			return logger
+		},
+		pop: function(){
+			return !this.__proto__.root ? this.__proto__ : this	
+		},
+	}
 
 
 	// setup the viewer...