I am happy to share my latest weekend project: PropCop 
.
What is it?
It includes only two Rhino Commands: PropToClipboard and PropFromClipboard. It copies attribute user text and object names from Rhino to your clipboard / pastes these properties to Rhino.
Why is it useful?
You can now add / modify / remove properties for multiple objects using Excel or your favorite text editor. This means, you can batch edit and filter properties and decuple property management from your geometry without programming. My primary usecase is property management in BIM-based workflows, I am exited to hear your usecases.
Who is it for?
Every Rhino users running Windows, especially from AEC industry.
Where can I get it?
Download it for free from Rhino package manager or from food4Rhino.