@dustindizzle11 It would be nice, and this has been asked for several times. In order to implement it, I believe a lot of code would need edited and rewritten. It would include changes in the database, the inits, the web interface - we would likely need an entire new management page just for domains.
I would even like the feature. But I would rather put it off till 2.0 in order to get 1.3.0 out faster.
Right now, if you want to be able to have the right domain info inserted for a host during a full-registration via the boot menu, the way to do this currently is to set your AD defaults to what you would want them to be.