Add a comment to a note/email

It would be a hugely valuabel feature to be able to comment on emails in Deals or just anywhere you see an email. It is really outmoded not being able to do this. HubSpot you have already got the tool built to do this as you aloow for it to happen on the Live Chat inbox. The exact same rationale for commenting existing there, in Live Chat, exists for it be on email.
To the point where I was looking for somewhere I coudl leave a comment and tag a friend. You simply need to add the same thing that you already have in Inbox for LiveChat, or something similar.
I just wanted to tag someone a colleague in a comment on an email rather than fwd him the email, as this is slower. Surely you want people staying in the HubSpot UI as much as possible and this would really speed up collaboration. Come on HubSpot, this is a no braner and easy to do.
Thanks.