diff --git a/scripts/README b/scripts/README
index 5ee413e8..186a1736 100644
--- a/scripts/README
+++ b/scripts/README
@@ -1,5 +1,18 @@
+sync-flash.sh
+	Syncs a camera flash card to an archive folder.
+
+	Dependencies:
+		- process-archive.sh
+		- compress-archive.sh (optional)
+		- bash
+
+	For more info see:
+		sync-flash.sh --help
+	
+
 process-archive.sh
-	Processes and prepares the archive folder for viewing.
+	Processes and prepares the archive folder for viewing via
+	ImageGrid.Viewer.
 
 	Dependencies:
 		- exiftool
@@ -9,17 +22,19 @@ process-archive.sh
 
 	XXX add self dependency check...
 
-
-process-archive.bat -- windows version of process-archive.sh (partial)
+	For more info see:
+		process-archive.sh --help
 
 
-sync-flash.sh
-	Syncs a camera flash card to an archive folder.
+compress-archive.sh
+	compresses raw files.
+
+	By default this will NTFS compress sony ARW files, but other
+	compression methods and raw formats are supported...
+
+	For more info see:
+		compress-archive.sh --help
 
-	Dependencies:
-		- process-archive.sh
-		- bash
-	
 
 update-exif.sh
 	Updates processed preview metadata from appropriate .PSD files.
@@ -27,6 +42,12 @@ update-exif.sh
 	Dependencies:
 		- exiv2 (to be deprecated)
 
+	For more info see:
+		update-exif.sh --help
+
+
+
+---
 
 flatten.sh
 	Flatten flickr/instagram favorite folder structure created by 
@@ -34,11 +55,13 @@ flatten.sh
 		./<author>/<filename> -> ./ALL/<author> - <filename>
 
 
+
+
 vips-tn.sh
 
 cleannwcache.bat
 
 extract-metadata.sh
 
-
+process-archive.bat -- windows version of process-archive.sh (partial)
 
diff --git a/scripts/compress-archive.sh b/scripts/compress-archive.sh
index 8ac40a49..98e8c7f2 100755
--- a/scripts/compress-archive.sh
+++ b/scripts/compress-archive.sh
@@ -29,11 +29,11 @@ printhelp(){
 	echo "Arguments:"
 	echo "	-h --help	- print this help and exit."
 	echo
-	echo "	-bz -bzip2	- use bzip2 to compress (default)."
-	echo "	-gz -gzip	- use gzip to compress."
-	echo "	-c -compact	- use ntfs compression."
+	echo "	-bz -bzip2	- use bzip2 to compress`[[ $ARCH == $ARCH_BZIP2 ]] && echo " (default)" || echo ""`."
+	echo "	-gz -gzip	- use gzip to compress`[[ $ARCH == $ARCH_GZIP ]] && echo " (default)" || echo ""`."
+	echo "	-c -compact	- use ntfs compression`[[ $ARCH == $ARCH_NTFS ]] && echo " (default)" || echo ""`."
 	echo
-	echo "	-ext EXT	- set file extension to compress (default: ARW)"
+	echo "	-ext EXT	- set file extension to compress (default: ${EXT})"
 	echo "			  NOTE: only one -ext is supported now".
 	echo
 }
diff --git a/scripts/sync-flash.sh b/scripts/sync-flash.sh
index 03eed2fe..c37d0ad1 100755
--- a/scripts/sync-flash.sh
+++ b/scripts/sync-flash.sh
@@ -5,7 +5,8 @@ COUNT=1
 TITLE=""
 
 RSYNC=rsync
-RSYNCFLAGS="-arptgoA --info=progress2,flist --human-readable"
+#RSYNCFLAGS="-arptgoA --info=progress2,flist --human-readable"
+RSYNCFLAGS="-arpt --info=progress2,flist --human-readable"
 
 CP=cp
 CPFLAGS=-Rpfv
@@ -14,6 +15,10 @@ CPFLAGS=-Rpfv
 COPY=$RSYNC
 COPYFLAGS=$RSYNCFLAGS
 
+COMPRESSOR=./compress-archive.sh
+COMPRESS=1
+
+
 # base mount dir...
 # systems with /mnt
 if [ -d /mnt ] ; then
@@ -40,10 +45,20 @@ while true ; do
 			echo "			single shoot."
 			echo "	-l|-last	last flash card in set, run"
 			echo "			process-archive.sh after copying."
-			echo "	-b|-base	the base dir to look for drives in"
+			echo "	-b|-base BASE	the base dir to look for drives in"
 			echo "			default: $BASE"
 			echo "	--rsync		use rsync (default)"
 			echo "	--cp		use cp"
+			if ! [ -z $COMPRESSOR ] ; then
+				echo "	--compress	toggle archive compression"
+				echo "			default: `[[ $COMPRESS ]] && echo "on" || echo "off"`"
+			fi
+			# notes...
+			echo
+			if ! [ -z $COMPRESSOR ] ; then
+				echo "NOTE: the index is fully usable during the compression stage"
+			fi
+			echo "NOTE: cp under Cygwin may messup permissions, use rsync."
 			echo
 			exit
 			;;
@@ -61,17 +76,24 @@ while true ; do
 			shift
 			;;
 		-b|-base|--base)
-			BASE=1
-			shift
+			BASE=$2
+			shift 2
 			;;
 		-cp|--cp)
 			COPY=cp
 			COPYFLAGS=-Rpfv
+			shift
 			break
 			;;
 		-rsync|--rsync)
 			COPY=$RSYNC
 			COPYFLAGS=$RSYNCFLAGS
+			shift
+			break
+			;;
+		-compress|--compress)
+			COMPRESS=`[[ $COMPRESS ]] && echo "" || echo 1`
+			shift
 			break
 			;;
 		*)
@@ -99,7 +121,12 @@ while true ; do
 			echo "Enter) copy drive ${DRIVE}"
 		fi
 		echo "2) build."
-		echo "3) quit."
+		if ! [ -z $COMPRESSOR ] ; then
+			echo "3) compresion is `[[ $COMPRESS ]] && echo "on" || echo "off"`"
+			echo "4) quit."
+		else
+			echo "3) quit."
+		fi
 		read -p ": " RES
 	
 		case $RES in
@@ -126,8 +153,15 @@ while true ; do
 				LAST=1
 				break
 				;;
-
 			3)
+				if ! [ -z $COMPRESSOR ] ; then
+					COMPRESS=`[[ ! $COMPRESS ]] && echo 1 || echo ""`
+				else
+					exit
+				fi
+				continue
+				;;
+			4)
 				exit
 				;;
 
@@ -138,6 +172,17 @@ while true ; do
 		esac
 	fi
 
+	# sanity check...
+	if ! [ -e "${BASE}/${DRIVE}" ] ; then
+		echo
+		echo "ERR: ${BASE}/${DRIVE}: does not exist, nothing to copy."
+		echo
+		if [[ $INTERACTIVE || ! $DRIVE ]] ; then
+			continue
+		fi
+		exit
+	fi
+
 	# XXX do a real three digit count...
 	# single flash card...
 	SCOUNT=`printf "%03d" $COUNT`
@@ -166,7 +211,7 @@ while true ; do
 
 	mkdir -vp "$DIR"
 
-	echo "Copying files from ${BASE}/${DRIVE}..."
+	echo "Copying files from ${BASE}/${DRIVE} (`du -hs "${BASE}/${DRIVE}" | cut -f 1`)..."
 	$COPY $COPYFLAGS ${BASE}/${DRIVE}/* "$DIR"
 	echo "Copying files: done."
 
@@ -187,4 +232,13 @@ if [[ ! $MULTI || $LAST ]] ; then
 	echo "Building archive: done."
 fi
 
+if [[ $COMPRESS ]] ; then
+	echo "Compressing archive..."
+	${COMPRESSOR} "$BASE_DIR"
+	echo "Compressing archive: done."
+fi
 
+
+echo "`basename "$0"`: done."
+
+# vim:set nowrap :
diff --git a/scripts/update-exif.sh b/scripts/update-exif.sh
index 9a34e68a..8f15d8d6 100755
--- a/scripts/update-exif.sh
+++ b/scripts/update-exif.sh
@@ -1,7 +1,32 @@
 #!/bin/bash
 
+
+
+
+
 DIR=`pwd`
 
+printhelp(){
+	echo "Usage: `basename $0` [ARGUMENTS] [PATH]"
+	echo
+	echo "Arguments:"
+	echo "	-h --help	- print this help and exit."
+	echo
+}
+
+while true ; do
+	case $1 in
+		-h|--help)
+			printhelp
+			exit
+			;;
+		*)
+			break
+			;;
+	esac
+done
+
+
 
 exifup(){
 	PREVIEW_DIR=$1
diff --git a/ui (gen4)/archive/media/img/my/work/compress-archive.sh b/ui (gen4)/archive/media/img/my/work/compress-archive.sh
new file mode 100644
index 00000000..98e8c7f2
--- /dev/null
+++ b/ui (gen4)/archive/media/img/my/work/compress-archive.sh	
@@ -0,0 +1,92 @@
+#!/bin/bash
+
+# TODO make this runnable from anywhere...
+#	- prepend paths with './' only if local/relative
+
+BASE_PATH=.
+
+
+ARCH_BZIP2='bzip2 -v {}'
+ARCH_GZIP='gzip -v {}'
+# XXX should we cygpath -w all the inputs???
+ARCH_NTFS='compact /c /exe:lzx {}'
+
+
+# default...
+ARCH=$ARCH_NTFS
+
+
+EXT=ARW
+
+# HACK: this is here to avoid using windows find...
+PATH=/bin:$PATH
+
+
+
+printhelp(){
+	echo "Usage: `basename $0` [ARGUMENTS] [PATH]"
+	echo
+	echo "Arguments:"
+	echo "	-h --help	- print this help and exit."
+	echo
+	echo "	-bz -bzip2	- use bzip2 to compress`[[ $ARCH == $ARCH_BZIP2 ]] && echo " (default)" || echo ""`."
+	echo "	-gz -gzip	- use gzip to compress`[[ $ARCH == $ARCH_GZIP ]] && echo " (default)" || echo ""`."
+	echo "	-c -compact	- use ntfs compression`[[ $ARCH == $ARCH_NTFS ]] && echo " (default)" || echo ""`."
+	echo
+	echo "	-ext EXT	- set file extension to compress (default: ${EXT})"
+	echo "			  NOTE: only one -ext is supported now".
+	echo
+}
+
+# process args...
+while true ; do
+	case $1 in
+		-h|--help)
+			printhelp
+			exit
+			;;
+
+		# archivers...
+		-bz|--bzip2)
+			ARCH=$ARCH_BZIP2
+			shift
+			;;
+		-gz|--gzip)
+			ARCH=$ARCH_GZIP
+			shift
+			;;
+		-c|--compact)
+			ARCH=$ARCH_NTFS
+			shift
+			;;
+
+		# extension to compress...
+		--ext)
+			EXT=$2
+			shift
+			shift
+			;;
+
+		*)
+			break
+			;;
+	esac
+done
+
+# get path...
+if [ "$1" ] ; then
+	BASE_PATH=$1
+fi
+
+
+
+# do the work...
+find "$BASE_PATH" -name \*.${EXT} -exec ${ARCH} \;
+
+
+
+echo done.
+
+
+
+# vim:set nowrap nospell :
diff --git a/ui (gen4)/archive/media/img/my/work/sync-flash.sh b/ui (gen4)/archive/media/img/my/work/sync-flash.sh
index 03eed2fe..c37d0ad1 100755
--- a/ui (gen4)/archive/media/img/my/work/sync-flash.sh	
+++ b/ui (gen4)/archive/media/img/my/work/sync-flash.sh	
@@ -5,7 +5,8 @@ COUNT=1
 TITLE=""
 
 RSYNC=rsync
-RSYNCFLAGS="-arptgoA --info=progress2,flist --human-readable"
+#RSYNCFLAGS="-arptgoA --info=progress2,flist --human-readable"
+RSYNCFLAGS="-arpt --info=progress2,flist --human-readable"
 
 CP=cp
 CPFLAGS=-Rpfv
@@ -14,6 +15,10 @@ CPFLAGS=-Rpfv
 COPY=$RSYNC
 COPYFLAGS=$RSYNCFLAGS
 
+COMPRESSOR=./compress-archive.sh
+COMPRESS=1
+
+
 # base mount dir...
 # systems with /mnt
 if [ -d /mnt ] ; then
@@ -40,10 +45,20 @@ while true ; do
 			echo "			single shoot."
 			echo "	-l|-last	last flash card in set, run"
 			echo "			process-archive.sh after copying."
-			echo "	-b|-base	the base dir to look for drives in"
+			echo "	-b|-base BASE	the base dir to look for drives in"
 			echo "			default: $BASE"
 			echo "	--rsync		use rsync (default)"
 			echo "	--cp		use cp"
+			if ! [ -z $COMPRESSOR ] ; then
+				echo "	--compress	toggle archive compression"
+				echo "			default: `[[ $COMPRESS ]] && echo "on" || echo "off"`"
+			fi
+			# notes...
+			echo
+			if ! [ -z $COMPRESSOR ] ; then
+				echo "NOTE: the index is fully usable during the compression stage"
+			fi
+			echo "NOTE: cp under Cygwin may messup permissions, use rsync."
 			echo
 			exit
 			;;
@@ -61,17 +76,24 @@ while true ; do
 			shift
 			;;
 		-b|-base|--base)
-			BASE=1
-			shift
+			BASE=$2
+			shift 2
 			;;
 		-cp|--cp)
 			COPY=cp
 			COPYFLAGS=-Rpfv
+			shift
 			break
 			;;
 		-rsync|--rsync)
 			COPY=$RSYNC
 			COPYFLAGS=$RSYNCFLAGS
+			shift
+			break
+			;;
+		-compress|--compress)
+			COMPRESS=`[[ $COMPRESS ]] && echo "" || echo 1`
+			shift
 			break
 			;;
 		*)
@@ -99,7 +121,12 @@ while true ; do
 			echo "Enter) copy drive ${DRIVE}"
 		fi
 		echo "2) build."
-		echo "3) quit."
+		if ! [ -z $COMPRESSOR ] ; then
+			echo "3) compresion is `[[ $COMPRESS ]] && echo "on" || echo "off"`"
+			echo "4) quit."
+		else
+			echo "3) quit."
+		fi
 		read -p ": " RES
 	
 		case $RES in
@@ -126,8 +153,15 @@ while true ; do
 				LAST=1
 				break
 				;;
-
 			3)
+				if ! [ -z $COMPRESSOR ] ; then
+					COMPRESS=`[[ ! $COMPRESS ]] && echo 1 || echo ""`
+				else
+					exit
+				fi
+				continue
+				;;
+			4)
 				exit
 				;;
 
@@ -138,6 +172,17 @@ while true ; do
 		esac
 	fi
 
+	# sanity check...
+	if ! [ -e "${BASE}/${DRIVE}" ] ; then
+		echo
+		echo "ERR: ${BASE}/${DRIVE}: does not exist, nothing to copy."
+		echo
+		if [[ $INTERACTIVE || ! $DRIVE ]] ; then
+			continue
+		fi
+		exit
+	fi
+
 	# XXX do a real three digit count...
 	# single flash card...
 	SCOUNT=`printf "%03d" $COUNT`
@@ -166,7 +211,7 @@ while true ; do
 
 	mkdir -vp "$DIR"
 
-	echo "Copying files from ${BASE}/${DRIVE}..."
+	echo "Copying files from ${BASE}/${DRIVE} (`du -hs "${BASE}/${DRIVE}" | cut -f 1`)..."
 	$COPY $COPYFLAGS ${BASE}/${DRIVE}/* "$DIR"
 	echo "Copying files: done."
 
@@ -187,4 +232,13 @@ if [[ ! $MULTI || $LAST ]] ; then
 	echo "Building archive: done."
 fi
 
+if [[ $COMPRESS ]] ; then
+	echo "Compressing archive..."
+	${COMPRESSOR} "$BASE_DIR"
+	echo "Compressing archive: done."
+fi
 
+
+echo "`basename "$0"`: done."
+
+# vim:set nowrap :
diff --git a/ui (gen4)/archive/media/img/my/work/update-exif.sh b/ui (gen4)/archive/media/img/my/work/update-exif.sh
index 9a34e68a..8f15d8d6 100755
--- a/ui (gen4)/archive/media/img/my/work/update-exif.sh	
+++ b/ui (gen4)/archive/media/img/my/work/update-exif.sh	
@@ -1,7 +1,32 @@
 #!/bin/bash
 
+
+
+
+
 DIR=`pwd`
 
+printhelp(){
+	echo "Usage: `basename $0` [ARGUMENTS] [PATH]"
+	echo
+	echo "Arguments:"
+	echo "	-h --help	- print this help and exit."
+	echo
+}
+
+while true ; do
+	case $1 in
+		-h|--help)
+			printhelp
+			exit
+			;;
+		*)
+			break
+			;;
+	esac
+done
+
+
 
 exifup(){
 	PREVIEW_DIR=$1
diff --git a/ui (gen4)/lib/widget/browse2.js b/ui (gen4)/lib/widget/browse2.js
index ffb8a263..21261dca 100755
--- a/ui (gen4)/lib/widget/browse2.js	
+++ b/ui (gen4)/lib/widget/browse2.js	
@@ -524,17 +524,52 @@ var BaseItemPrototype = {
 			: undefined },
 
 
-	// XXX BUG: this does not work for nested header elements...
+	// NOTE: these should not clash with user-supplied handlers ('update' does not)...
+	//
+	// XXX BUG: calling this on a nested/inlined browser will mess things up...
+	// 		...the issue seems to be with root options not being available
+	// 		for partial render in a nested context...
+	// 		...one way to fix this would be to make the options inheritance
+	// 		protocol more strict:
+	// 			- if no options given use defaults (i.e. this.options)
+	// 			- if options given use as-is
+	// 			- defaults are taken from this.options if not present 
+	//
 	// 		to reproduce:
-	// 			dialog
-	// 				.get({children: true})
-	// 				.update()
-	// 		...for some reason the affected element is removed from dom...
+	//			dialog.disable('2')	
+	//		or:
+	//			dialog.disable('B/C/D/a')	
+	//
+	//		...in both cases the whole nested browser disappears...
+	//
+	//		but this works OK:
+	//			dialog.disable('nested/2')
+	//
+	//		This might also be a side effect of the .dom / .elem set of 
+	//		issues...
+	//
+	//		This issue seems to go away after expanding/collapsing the
+	//		nested item several times, the buttons are gone but the 
+	//		subtrees stop vanishing on update -- could this be related 
+	//		to .dom/.elem again???
 	update: function(options){
 		this.parent
 			&& this.parent.render(this, options)
-		return this
-	},
+		return this },
+	/* XXX this is disabled to avoid user confusion when a user item 
+	// 		event handler would not call/replicate the top-level (this)
+	// 		functionality and this break code relying on it...
+	// 		...for this to work well need to either:
+	// 			- separate item options form the item object,
+	// 			- force the user to follow strict protocols,
+	// 			- use a proxy when accessing items (reverse of #1) 
+	// 		XXX this also applies to .update(..) above...
+	focus: function(){ 
+		arguments.length == 0 
+			&& this.parent
+			&& this.parent.focus(this)
+		return this },
+	//*/
 
 
 	__init__(...state){
@@ -785,6 +820,9 @@ object.Constructor('BaseRenderer', {
 	// placeholders...
 	root: null,
 
+	isRendered: function(){
+		throw new Error('.isRendered(..): Not implemented.') },
+
 	// component renderers...
 	elem: function(item, index, path, options){
 		throw new Error('.elem(..): Not implemented.') },
@@ -810,6 +848,9 @@ module.TextRenderer =
 object.Constructor('TextRenderer', {
 	__proto__: BaseRenderer.prototype,
 
+	// always render...
+	isRendered: function(){ return false },
+
 	elem: function(item, index, path, options){
 		return path
 			.slice(0, -1)
@@ -840,6 +881,9 @@ module.PathRenderer =
 object.Constructor('PathRenderer', {
 	__proto__: TextRenderer.prototype,
 
+	// always render...
+	isRendered: function(){ return false },
+
 	elem: function(item, index, path, options){
 		return path.join('/') },
 	inline: function(item, lst, index, path, options){
@@ -2654,10 +2698,14 @@ var BaseBrowserPrototype = {
 							return r && typeof(e) != typeof({}) }, true))){
 			// reverse index...
 			index = this
-				.reduce(function(res, e, i, p){
-					res.set(e, [i, p])
-					return res
-				}, new Map(), {iterateAll: true})
+				.reduce(
+					function(res, e, i, p){
+						res.set(e, [i, p])
+						return res }, 
+					new Map(), 
+					Object.assign(
+						Object.flatCopy(options || {}),
+						{iterateAll: true}))
 			var res
 			var Stop = new Error('Stop iteration')
 			try {
@@ -2676,7 +2724,10 @@ var BaseBrowserPrototype = {
 										throw Stop })
 								: pattern ]
 							// search...
-							: that.search(pattern, ...args.slice(1)) })
+							: !(pattern instanceof BaseItem) ?
+								that.search(pattern, ...args.slice(1)) 
+							// not found...
+							: [] })
 					.flat()
 					.unique() 
 			} catch(e){
@@ -2946,6 +2997,13 @@ var BaseBrowserPrototype = {
 
 	__renderer__: TextRenderer,
 
+	isRendered: function(renderer){
+		var render = renderer || this.__renderer__
+		render = render.root == null ?
+			new render(this, this.options) 
+			: render
+		return render.isRendered() },
+
 	//
 	//	Render browser...
 	//	.render([options])
@@ -3594,19 +3652,39 @@ var BaseBrowserPrototype = {
 	// XXX should we force calling update if options are given???
 	// 		...and should full get passed if at least one call in sequence
 	// 		got a full=true???
-	__update_full: undefined,
+	// XXX supported mdoes:
+	// 		'full' | true	- make - render - post-render
+	// 		'normal'		- render - post-render
+	// 		'partial'		- post-render
+	__update_mode: undefined,
 	__update_args: undefined,
 	__update_timeout: undefined,
 	__update_max_timeout: undefined,
 	update: makeEventMethod('update', 
-		function(evt, full, options){
-			options = 
-				(full && full !== true && full !== false) ? 
-					full 
-					: options
-			full = full === options ? 
-				false 
-				: full
+		function(evt, mode, options){
+			var modes = [
+				'full', 
+				'normal', 
+				'partial',
+			]
+
+			options = mode instanceof Object ?
+				mode
+				: options
+			mode = mode === options ? 
+					'normal' 
+				: mode === true ?
+					'full'
+				: mode
+			// sanity check...
+			if(!modes.includes(mode)){
+				throw new Error(`.update(..): unsupported mode: ${mode}`) }
+			var m = this.__update_mode
+			// if the queued mode is deeper than the requested, ignore the requested...
+			if(m != null && modes.indexOf(mode) > modes.indexOf(m)){
+				return this }
+
+			// queue update...
 			// NOTE: we can't simply use _update(..) closure for this as
 			// 		it can be called out of two contexts (timeout and 
 			// 		max_timeout), one (timeout) is renewed on each call 
@@ -3616,14 +3694,14 @@ var BaseBrowserPrototype = {
 			// 		its setTimeout(..)...
 			// 		storing the arguments in .__update_args would remove
 			// 		this inconsistency...
+			this.__update_mode = mode
 			var args = this.__update_args = [
-				[evt, full, 
+				[evt, mode, 
 					...(options ? 
 						[options] 
 						: [])], 
 				options]
-			this.__update_full = (full && args) 
-				|| this.__update_full
+
 			var timeout = (options || {}).updateTimeout
 				|| this.options.updateTimeout
 			var max_timeout = (options || {}).updateMaxDelay
@@ -3637,20 +3715,22 @@ var BaseBrowserPrototype = {
 				delete this.__update_timeout }.bind(this)
 			var _update = function(){
 				_clear_timers()
-				var full = !!this.__update_full
-				var [args, opts] = this.__update_full 
-					|| this.__update_args 
+				var mode = this.__update_mode
+				var [args, opts] = this.__update_args
 
-				delete this.__update_full
+				delete this.__update_mode
 				delete this.__update_args
 
-				full 
+				// make...
+				modes.indexOf(mode) <= modes.indexOf('full')
 					&& this.make(opts) 
-				var context = {}
-				this
-					// XXX this needs access to render context....
-					.preRender(opts, (opts || {}).renderer, context)
-					.render(opts, (opts || {}).renderer, context) 
+				// render...
+				;(!this.isRendered((opts || {}).renderer)
+						|| modes.indexOf(mode) <= modes.indexOf('normal'))
+					&& this
+						.preRender(opts, (opts || {}).renderer)
+						.render(opts, (opts || {}).renderer) 
+				// update...
 				this.trigger(...args) }.bind(this)
 			var _update_n_delay = function(){
 				// call...
@@ -3771,6 +3851,7 @@ object.Constructor('BaseBrowser',
 
 
 //---------------------------------------------------------------------
+// HTML-specific UI...
 
 var KEYBOARD_CONFIG =
 module.KEYBOARD_CONFIG = {
@@ -4034,17 +4115,17 @@ var updateElemClass = function(action, cls, handler){
 
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
-// Renderer...
+// HTML Renderer...
 
-// XXX needs testing...
-// 		- partial rendering...
-// 		- local re-rendering...
 // XXX HACK: see .nest(..)
 var HTMLRenderer =
 module.HTMLRenderer =
 object.Constructor('HTMLRenderer', {
 	__proto__: BaseRenderer.prototype,
 
+	isRendered: function(){ 
+		return !!this.root.dom },
+
 	// secondary renderers...
 	//
 	// base dialog...
@@ -4654,7 +4735,6 @@ var HTMLBrowserPrototype = {
 	__item__: HTMLItem,
 	__renderer__: HTMLRenderer,
 
-
 	options: {
 		__proto__: BaseBrowser.prototype.options,
 
@@ -5045,29 +5125,28 @@ var HTMLBrowserPrototype = {
 	__copy: function(text){
 		navigator.clipboard.writeText(text || this.path) },
 
-	// XXX need a better name...
-	_updateDOMItems: function(){
+
+	// Events extensions...
+	//
+	// XXX should tweaking DOM be done here or in the renderer???
+	__update__: function(){
 		var c = 0
 		this.forEach(function(e){
 			// shortcut number hint...
 			if(c < 10 && !e.disabled && !e.hidden){
 				var a = e.attrs = e.attrs || {}
-				c = a['shortcut-number'] = (++c) % 10
 				e.elem 
-					&& e.elem.setAttribute('shortcut-number', c)
-
+					&& e.elem.setAttribute('shortcut-number', 
+						a['shortcut-number'] = (c+1) % 10)
 			// cleanup...
 			} else {
 				delete (e.attrs || {})['shortcut-number']
 				e.elem 
 					&& e.elem.removeAttribute('shortcut-number')
 			}
+			c++
 		}) },
-
-	// Events extensions...
-	//
 	// NOTE: this will also kill any user-set keys for disabled/hidden items...
-	//
 	// XXX also handle global button keys...
 	__preRender__: function(evt, options, renderer, context){
 		var that = this
@@ -5079,18 +5158,6 @@ var HTMLBrowserPrototype = {
 
 		var i = 0
 		this.map(function(e){
-			// shortcut number hint...
-			// NOTE: these are just hints, the actual keys are handled 
-			// 		in .keybindings...
-			// XXX move this to the renderer...
-			if(i < 10 && !e.disabled && !e.hidden){
-				var attrs = e.attrs = e.attrs || {}
-				attrs['shortcut-number'] = (++i) % 10
-			// cleanup...
-			} else {
-				delete (e.attrs || {})['shortcut-number']
-			}
-			
 			// handle item keys...
 			if(!e.disabled && !e.hidden){
 				;((e.value instanceof Array ? 
@@ -5140,7 +5207,7 @@ var HTMLBrowserPrototype = {
 						block: 'nearest',
 					})
 				})
-				// set focus...
+				// XXX do we need this???
 				.focus() },
 	__blur__: function(evt, elem){
 		var that = this
@@ -5157,14 +5224,22 @@ var HTMLBrowserPrototype = {
 	// 		element up to reveal the expanded subtree...
 	// 		...would also be logical to "show" the expanded tree but 
 	// 		keeping the focused elem in view...
-	__expand__: function(evt, elem){ elem.update() },
-	__collapse__: function(evt, elem){ elem.update() },
+	__expand__: function(evt, elem){ 
+		elem.update() 
+		this.update('partial') },
+	__collapse__: function(evt, elem){
+		elem.update() 
+		this.update('partial') },
 	__select__: updateElemClass('add', 'selected'),
 	__deselect__: updateElemClass('remove', 'selected'),
 	__disable__: updateElemClass('add', 'disabled', 
-		function(evt, elem){ elem.update() }),
+		function(evt, elem){
+			elem.update() 
+			this.update('partial') }),
 	__enable__: updateElemClass('remove', 'disabled', 
-		function(evt, elem){ elem.update() }),
+		function(evt, elem){
+			elem.update() 
+			this.update('partial') }),
 	__hide__: updateElemClass('add', 'hidden'),
 	__show__: updateElemClass('remove', 'hidden'),