After reading a note I would like to return whence I came

Right now it gets the next (older) note. From my point of view this is the worst possible option. This should be a user option. Imagine one is carrying on a conversation with one's younger brother and one's real estate agent. I start at the bottom with oldest note and work up to the newest note. Which is the opposite of what happens now. In this example there are two conversations which might be manageable, but at some point keeping all the conversations straight becomes a challenge. I would prefer to return to my INBOX and select the next note. I am sure that there are those out there who would have the computer organize notes into conversations, but I am too much of a control freak to be comfortable with this approach.