RE:RE:RE:my guessYou can put orders in anytime but they will not fill or trade until the halt is lifted and trading becomes active again.
A buyer or seller may be anticipating what the news is and/or the direction the stock price is going to move and may put in a buy or sell order to be at the head of the line when trading starts.
They still have the option to cancel their order before trading starts if their buy/sell opinion changes after the news release.