signed sealed and posted, page-15

Yes.

I have lost my ability to screenshot at present.

If you look at page 3 of yesterday's announcement, part B deals with CHESS holdings.

Basically you just need to call your broker (I.e CommSec) and ask them to carry out the instructions listed.

If I was you, I would have those exact terms mentioned written down as your broker is likely to not have to do this very often.
You may need to show a little bit of patience!