This new script I created will allow the user to unhide objects using mouse clicks by temporarily hiding the current scene and unhiding all hidden objects so you can pick the objects you like to unhide. After picking the objects you can right-click and your original scene is back again plus the objects you've picked.
If you like the script you can download it from the description area on YouTube
Demo link:
https://youtu.be/1OiQxu8zKuc