Chat Position Upon chaging spaces

As of right now, if I have a couple of unread messages in a particular space, I can see the counter in the sidebar. Then, when I click on it to see the new messages, it scrolls all the way to the bottom. So, I loose my position in the chat and I don't know where the unread messages begins form. I have to manually scroll back up and see what's what. I really think it would be best if the chat remains in its scroll position and shows a counter of unread messages as a arrow in a button on the down right corner so the user can click on it if he wishes to do so.