Change soft keys in Messaging?

[smeg36]

I'd really like to change some of the soft key functions in the Messaging program. Specifically, I'd like to alter the left soft key when reading an email from Reply All to just Reply. I keep hitting Reply All to reply to an email, and that will then send the email back to me as well as the original sender. I know I can go to the right soft key, then reply, then just reply, but I'd really like to have it be Reply instead of Reply all. I've gone through the registry, and couldn't find a setting for it. I'd also like to change the left soft key in the Text Message account when looking at all the messages from Reply to Delete.