In this page you can set your account information.
Account currency - set your account currency.
Initial account - set the initial account to be equal to your account at your broker. When you u use lower account, you have to trade with lower lot sizes.
Leverage - set the leverage you have at your broker. EA Studio supports values from 1/1 to 1/500.
Start the backtest from bar 100 - Many indicators require a specific amount of bars to draw their curves. This option makes sure all indicators will have sufficient data to provide trading signals for the backtest.