deferred settlement basis

Anyone here know how Castlemaine will be traded beginning tomorrow on a "deferred settlement basis"?

My main questions: Does Castlemaine get a new code beginning tomorrow? Can I participate in trading tomorrow?

I'm expecting a chaotic market for the next few days during the transition, is this typically what happens in a transition to a consolidation?

I'm probably best to stay out of the market for about a week but never know, could be some excellent bargains available during the transition, or a selling opportunity (don't get me wrong, I would only sell a few percent of my core holding, for the pocket money)

appreciate it greatly if anyone can't help here