This widget allows you to add vertical responsive menu into your Muse sites. It includes an awesome SlideOut effect, so the menu will appear only when your website visitor will click on the menu button. Moreover, you will be able to design this button directly in Muse! This widget also includes many more options to customize the look, colors, position of the menu, etc.
This widget is also available as part of the Adobe Muse Widgets Bundle.
jQuery version of this Menu is also available.