webdevstudios

Justin Sternberg

If you have ever needed to accommodate a client’s request to have separate widget areas for many sections of the site, you understand the need for this plugin.
This plugin alleviates the pain of having many sidebar widget areas by hiding all but one (that is selectable via a dropdown). Gone are the days of trying to drag a new widget from the left column to a widget area at the bottom of the right column (ugh!).
There is no configuration for this plugin.
Contribute on <a href="https://github.com/WebDevStudios/Sane-Widget-Sidebar-Management" rel="nofollow ugc">github</a>.

Sane Widget Sidebar Management

Manage one widget area at a time to maintain widget sanity.

inconver

You can add new sidebars in the admin panel and edit them.
You can add new types of widgets and edit them. 
Also, you can add custom fields for new types of widgets. 
And you can create a unique template for each new type of widget.
Video tutorial: <a href="http://inconver.com/wui/" rel="nofollow ugc">http://inconver.com/wui/</a>

WUI: Widgets User Interface

Plugin for creating new sidebars for the site and new types of widgets with the custom fields

Sane Widget Sidebar Management vs WUI: Widgets User Interface