The Clipboard is a feature designed as a shared clipboard between Kali Linux and your local machine when direct copy/paste between your local machine and in-browser Kali is unavailable or restricted by your browser. This feature can be used to manage your copy and paste actions, both to and from the Kali terminal. 

FROM Kali

1. Write content in the Kali terminal
2. Copy the content
3. Open the More drop-down menu from the upper toolbar, and select Clipboard
4. The Clipboard automatically opens with the current state of your clipboard (copied content)
5. Copy the content from the Clipboard, and paste the content to your local machine 

TO Kali

1. Write content in your local machine, etc. and copy the content
2. Open the More drop-down menu from the upper toolbar in your in-browser Kali, and select Clipboard
3. After the Clipboard automatically opens, paste your content in the Clipboard and press Paste to Kali to populate the Kali clipboard
4. Open the Kali terminal, and paste the content from the Kali clipboard to Kali