It's not part of this expansion, nor really expansion work. I started working on it months ago but haven't had time to really sink into it. Possibly I could look at it after 6.0 or 6.1 (we're planning another official release about a month after 6.0 to upgrade to Unity 4, but don't want to upgrade for 6.0 because 4 drops support for PowerPC and some other older stuff).