Here is a demonstration of the usefulness of copy to clipboard using this add-on.
Super fast Blender to Photoshop cryptomatte masks:
When working in an image editor, having the ability to pick cryptomatte elements in Blender as needed, and quickly transfer the generated mask to the image editor would be an efficient workflow.
Copy and paste from clipboard is not a new request. It is part of the new render window discussion, and has been requested a couple of times on its own: 1, 2, 3, 4, 5.
This add-on however, currently does not work in 2.93 for me, I used 2.83 for this demo.
In my opinion, copy and paste from clipboard is a core function and should not be part of an add-on.
Hopefully this working demonstration will help you consider implementing this function.
Thank you for your time