Hi,
Whilst the platform will open all 40 pairs positions, it will require approx margin of $2000, you will have $400,000 exposure and the slightest whisker of movement in your underlying positions and the broker will margin call you and close all positions. Your combined leverage would be 159:1, very extreme.
If you had previous demo with us the software will not generate a new demo to the same email address, you have 2 options, contact support and ask them to extend your original demo, or fill out demo request form with alternative email address.