Hi lightspeed.
are you talking about using two brains at the same time?
if so, I have already done this in the past with the XTF brain and HAL 6 for Holllywood sometime ago, if this is the case then it's a matter of converting a custom brain into a plug.
If your referring to having the ability to have two brains chosen at the same time in HAL's default brain options then this would be Roberts department.
Jerry[8D]