This script, crafted within Autodesk Revit 2023, utilizes just three Python nodes with CPython to efficiently uncover hidden elements in projects.
The user can select one or more categories. In this way, the user does not need to go to reveal hidden elements mode, select elements, and then filter by category and unhide.
Before you start using this script, please back up the existing project model.
Also, if you wish to download this (and all other scripts) along with my sample files, please visit the Shop page.
The script does not use Dynamo packages.