On Windows, press Ctrl + C to copy and Ctrl + V to paste
On Mac, press Command + C to copy and Command + V to paste
In Minecraft chat, use the same copy and paste shortcuts
In the chat box, click the text field before pasting
On consoles, use the system keyboard copy and paste options if available
On mobile, tap and hold the text, then choose Copy or Paste
In Creative mode, use Ctrl + middle-click to copy a block in the hotbar
In Creative mode, use the pick block key to copy the selected block type
For signs, books, and chat text, select the text first, then copy and paste
If shortcuts do not work, check your keyboard settings and game focus