diff --git a/ui (gen4)/lib/features.js b/ui (gen4)/lib/features.js
index a2bacda2..711e24fa 100755
--- a/ui (gen4)/lib/features.js	
+++ b/ui (gen4)/lib/features.js	
@@ -28,6 +28,10 @@ console.log('>>> features')
 // 					  features with higher priority will be setup first,
 // 					  features with the same priority will be run in order of
 // 					  occurrence.
+// 	.suggested		- list of optional suggested features, these are not 
+// 					  required but setup if available.
+// 					  This is useful for defining meta features but without
+// 					  making each sub-feature a strict dependency.
 // 	.depends		- feature dependencies -- tags of features that must setup
 // 					  before the feature (list | null)
 // 	.exclusive		- feature exclusivity tags (list | null)
@@ -148,6 +152,9 @@ function Feature(feature_set, obj){
 		obj = feature_set
 		// XXX is this a good default???
 		feature_set = Features
+
+	} else if(feature_set == null){
+		feature_set = Features
 	}
 
 	obj.__proto__ = FeatureProto
@@ -162,6 +169,20 @@ Feature.prototype = FeatureProto
 Feature.prototype.constructor = Feature
 
 
+var MetaFeature
+module.MetaFeature = function(feature_set, tag, list){
+	if(list == null){
+		list = tag
+		tag = feature_set
+		feature_set = null
+	}
+	return Feature(feature_set, {
+		tag: tag,
+		suggested: list,
+	})
+}
+
+
 var FeatureSet =
 module.FeatureSet = {
 	// Build feature list...
@@ -267,6 +288,17 @@ module.FeatureSet = {
 			return res
 		}
 
+		// expand optional "suggested" features...
+		var res = []
+		lst.forEach(function(n){
+			var e = that[n]
+			if(e != null && e.suggested != null){
+				res = res.concat(e.suggested)
+			}
+			res.push(n)
+		})
+		lst = res
+
 		// expand and sort dependencies...
 		// 	2+ times untill depth is 0 or length stabelizes...
 		var missing = {}
diff --git a/ui (gen4)/ui.js b/ui (gen4)/ui.js
index 0ca63383..d56c2018 100755
--- a/ui (gen4)/ui.js	
+++ b/ui (gen4)/ui.js	
@@ -212,30 +212,7 @@ $(function(){
 	a.setEmptyMsg('Loading...')
 
 	viewer.ImageGridFeatures.setup(a, [
-		// features...
-		'ui-ribbon-align-to-order',
-		'ui-single-image-view',
-		'ui-partial-ribbons',
-
-		'image-marks',
-		'image-bookmarks',
-
-		'fs-loader',
-		'app-control',
-
-
-		// chrome...
-		'ui-animation',
-		'ui-bounds-indicators',
-		'ui-current-image-indicator',
-			// NOTE: only one of these can be set...
-			'ui-current-image-indicator-hide-on-fast-screen-nav',
-			//'ui-current-image-indicator-hide-on-screen-nav',
-		'ui-image-state-indicator',
-		'ui-global-state-indicator',
-
-		// experimental and optional features...
-		//'auto-single-image',
+		'viewer-testing',
 
 		// XXX this is not for production...
 		'experiments',
diff --git a/ui (gen4)/viewer.js b/ui (gen4)/viewer.js
index 5797f277..9a4b816b 100755
--- a/ui (gen4)/viewer.js	
+++ b/ui (gen4)/viewer.js	
@@ -2379,6 +2379,67 @@ module.FileSystemLoader = features.Feature(ImageGridFeatures, {
 
 
 
+//---------------------------------------------------------------------
+// Meta features...
+//
+// XXX need to make a set of basic configurations:
+// 		- commandline		- everything but no UI
+// 		- viewer-minimal	- basic browser compatible viewer
+// 		- viewer			- full viewer
+// 		- editor			- editing capability
+//
+
+features.MetaFeature(ImageGridFeatures, 'viewer-testing', [
+	// features...
+	'ui-ribbon-align-to-order',
+	'ui-single-image-view',
+	'ui-partial-ribbons',
+
+	'image-marks',
+	'image-bookmarks',
+
+	'fs-loader',
+	'app-control',
+
+	// chrome...
+	'ui-animation',
+	'ui-bounds-indicators',
+	'ui-current-image-indicator',
+		// NOTE: only one of these can be set...
+		'ui-current-image-indicator-hide-on-fast-screen-nav',
+		//'ui-current-image-indicator-hide-on-screen-nav',
+	'ui-image-state-indicator',
+	'ui-global-state-indicator',
+
+	// experimental and optional features...
+	//'auto-single-image',
+])
+
+features.MetaFeature(ImageGridFeatures, 'commandline', [
+	'image-marks',
+	'image-bookmarks',
+])
+
+features.MetaFeature(ImageGridFeatures, 'viewer-minimal', [
+	'ui-ribbon-align-to-order',
+	'ui-animation',
+	'ui-bounds-indicators',
+	'ui-current-image-indicator',
+		'ui-current-image-indicator-hide-on-fast-screen-nav',
+		//'ui-current-image-indicator-hide-on-screen-nav',
+])
+
+features.MetaFeature(ImageGridFeatures, 'viewer', [
+	'viewer-minimal',
+])
+
+features.MetaFeature(ImageGridFeatures, 'viewer-partial', [
+	'viewer',
+	'ui-partial-ribbons',
+])
+
+
+
 //---------------------------------------------------------------------
 
 var ExperimentActions = actions.Actions({