User preference for default email to use

[planetf1]

I setup ponymail to review some of the atlas/ranger apache lists. I had to configure using my gmail account (no apache account yet) However I am already a member of the mailing list using my company (ibm.com) account, so I figured I'd set that up as an additional address in ponymail. I did that association ok, but when I go into the compose window it will default to my authenticated email address, and I have to click the drop down to switch

Could we have a preference to allow the user to chose their default email -- of course this could be global, or could be related to group....