Copy ID of a blocked message

When e.g. reporting someone to the Trust & Safety team, you have to provide a message ID, but if they sent you something like gore, you probably wouldn't want to have to look at it just to copy the message ID again. I personally wanted to report someone for this, but due to me having them blocked, can not because I'd have to open the message again, which I do not want to because it was very disturbing for me. This is why I would like an option to simply copy the ID of a message that is blocked. Not sure how this would be done when there are 2 or more blocked messages.