From the Autodesk App Store:
The application searches for Autodesk® Revit® commands.Have you forgotten where the button you need is? No problem! Enter the name or part of the name, then run!
The application searches for all built-in Revit commands, as well as for all installed plugins. The application will perform a search for all the commands that are on the Revit ribbon.
[youtube https://www.youtube.com/watch?v=7SWvSrpp36E]
About This Version
Version 1.0.0, 7/28/2017 – Find Revit commands…
Read more