From the Autodesk App Store:
BIM Optimized ViewIT app for Autodesk® Revit® is a configurable, multi-functional application providing an optimized system for accessing your views and sheets through a variety of tools designed specifically to streamline model navigation. The ViewIT app helps eliminate the inefficiency of task-switching and scrolling through large projects in the Project Browser.
The Sheet Number function provides an interface that allows the user to key in and filter for specific sheet numbers. The Sheet Contains function provides an interface that allows the user to key in and filter for specific values in the Sheet Number & Name, again eliminating the inefficiency of scrolling through large projects in the Project Browser.
ViewIT provides several functions for expanding your capabilities when accessing your views. The Tile Checked Views function provides the ability to open and tile multiple views in a fraction of the time it currently takes. The Close Views function allows the user to close all but the active view.