[FR] Command to mark code

[Ypot]

Hi!

My first time with claude-code, and my first time with a package of Álvaro ;D

Suggestion: when the output has a block of code, it is shown nicely with the clipboard symbol, and it made me think... why not a command that copies just the block of code of the last output? If several blocks, it could show [1], [2], etc.

Like (shell-maker-mark-output), but maybe (shell-maker-mark-block).

Thanks for your work, my first day, I hope to be using it a lot.