I can't answer that part because I'm demoing with another broker (North Finance) which does allow that, however apparently they are not "regulated" so I'm not sure if I will go with them for real.

However, I would suggest demoing with the amount you plan to start with for real. Making 32K on a 100K demo is rather misleading as to how it will really be compared to paring that down to using 1K real money and getting only 320 in return ...and then you'd have to do that about 100 times successfully to match the 32K profit you experienced in demo which probably only took a few successful trades. .

You probably know this but said it anyways