[Evolution] Combined from/to header

[Dale Mellor <dale rdmp org>]

My biggest bug-bear with evolution is that I needlessly see my own name
in listings in either the `from' or `to' columns.

It would be really nice to have one column which indicates `from' if it
is a message I received, or `to' if it is a message I sent.

Is there any configuration which would accomplish this, or are there any
plans to bring such a feature in in future?  

Would it be difficult to write an extension to this effect (at the
moment I know nought about extensions, but might pick it up if I thought
it would be easy to get this done)?