To have an Eq or Dyn plug in autofocus when you assign it, turn the console preference "ChanWn" to yes.
As far as having an Eq or Dyn plug in focus when you use the dedicated Eq or Dyn channel buttons on D-Control, this is not possible at this time. A workaround would be to just focus the channel to the center. There are numerous ways to focus and can be found in the D-Control operations document. It can be downloaded from the following page;
D-Control operations document
We are working on a D-Command specific one and hope to have it up soon.
Gil