“Free of charge you can try IMAGINiT Utilities for Revit Lite which includes four popular utilities:
Room Renumber, Change Case, Space Update and GridSelect.”
Room Renumber Easily renumber existing rooms into an order defined by selection. Insert rooms into an existing series with the subsequent room numbers “shifted” to make space for the inserted one.
Change Case Instantly match your organization’s or client’s standards on naming with UPPER CASE, Title Case, or lower case. This tool scans your model and automatically fixes “case issues” to whatever standard you specify.
Space Update Seamlessly transfers room names and numbers from the linked Revit Architecture model to the Revit MEP model. Eliminate tedious manual input of room names and numbers in different places.
GridSelect Select Revit elements based on the grid they are on. Select walls, columns, beams and more. Choose the current level or all levels and select collinear or touching beams.
For more info, head over to http://imaginit.com/software-solutions/building-architecture/imaginit-utilities-for-revit