Marking messages as Replied in Mail and formatting

When I compose a reply in Mail but save it as a Draft before sending it, Mail does not mark the original message as having been replied to (the little arrow does not appear), making it seem as though I haven't replied to that message yet. Is there a way to fix this or force it?

Also irritating, but less urgent, is the lack of formatting options in Mail, such as indents and lists. Is there any way to add those functions?

Thanks!

No "replied" arrow

I'm having the same problem with the replied arrow. It does not always display after having replied to a message. Let me know if you find a solution. Thanks.