In Nostr, you just copy the Note ID and paste that into the note man.

The Copy Note Link is for posting a link outside of Nostr.

nostr:nevent1qqs2dnlkf9r6wdar7rektdjq6nksqtjqlnddaedrygzmy3t97hrdzkcpz9mhxue69uhkummnw3ezuamfdejj7q3qhk0tv47ztd8kekngsuwwycje68umccjzqjr7xgjfqkm8ffcs53dqxpqqqqqqz6w5ex5