Good news! The new version has now been released. You can read all about the new 'Keyboard Betting' feature here: Keyboard betting and shortcuts
That is a link to the page in the user manual. On that page, scroll down to the section about moving the 'cell pointer', you'll find an explanation of how to rapidly place a bet to lay at 1000, by press the CTRL+HOME keys, followed by the SPACE bar to submit the bet. Please test this out exhaustively in demo mode to gain familiarity with the new features before risking real money.
You might find it better to just do PageUp two or three times in the Lay column, then place a bet at more modestly high odds (not as high as 1000), so that less money is put at risk. It depends whether the price goes straight to 1000 or not.
The software will automatically update itself to the new version next time you open it.
I hope you enjoy it. I'll be interested to hear how you get on.