Drop down widget

[DavidTidwell]

I am looking for a widget that has drop down tree similar to the layer list.  I am wanting to modify it to set links to metadata for my arcmap project I am displaying in web app viewer.  I am  not very good at writing code, but can modify code...

[RobertScheitlin__GISP]

David,

   The enhanced Bookmark widget may be a good starting point then:

https://community.esri.com/docs/DOC-6889-enhanced-bookmark-widget-version-23-21417 

[HemingZhu]

There are quite a few free open source. have you ever looked at  jstree? it is simple to plug in dealing with JSON data. It will look at this:

You can customize easily by change font, icons etc.