I am currently doing some research / testing for other developers in my office. We are creating an in-house application that will create schematic drawings and will operate in a very CAD like manner

What we are looking at currently is some sort of (Vertical) Toolbar set-up that will support grouping of Like Symbols (Widgets).

Ex: Say we have a basic widget "Bob" then there are special versions of "Bob" like "Bob with Hat", "Bob with Sunglasses", "Bob with Flipflops" etc.

What we want is the Symbol for "Bob" along with some type of expansion / flyout indicator that when clicked will produce a iconic listing of the various "Bob" widget variations.

Some additional functionality would be:

 - All the Symbols are drag & drop onto the design area of the application sothese flyout / sub menu's must support drag & drop also

 - There should be a means to display a tool tip for each Widget listing it's descriptive name (i.e. "Bob with Flipflops", etc)

At this point they are using an Ultra Explorer Bar (so I'm told) and I have been looking at some of the samples of the UltraToolBar manager with specific interest in Galleries and Ribbons but I haven't quite figured out how to put it all together to get what we want or if I'm barking up the wrong control(s)

Any help or suggestions would be greatly appreciated. We will also entertain solutions that don't have quite this visual setup as long as the functionality is there.