Unity 4.6 - Interactable UI Elements

Brief Description

Essentially what I want to do is create a single list of all the buttons, sliders, scroll bars, toggles, and input fields that are children of the current Object. Now I know I could create five different lists and modify it that way, but I'd much rather have a single list to cycle through.

I presume that Unity would inherit from a base class in order to not repeat code, but it may not be available outside their library.

My Question: Is there a publicly available base class to these elements that contains the interactable bool?

If what I'm trying to portray isn't overly clear then I apologize.