Reference: Asset Settings, Portfolio Settings, Account Settings and Default Trading Settings
The Default Trading Settings dialog allows you to access and manipulate the settings of individual assets in your portfolio. The Default Trading Settings dialog contains four tabs:
Stock, Forex and Futures Defaults
The Position Sizing, Limits and Stops, Order Details and Order Fees tabs are all tied with the Asset Settings, Portfolio Settings, Account Settings and Default Trading Settings dialogs. Please note that any adjustments made to these tabs from the Asset Settings dialog will only affect that particular asset. However, any adjustments made to these tabs from the Portfolio Settings or Account Settings will affect the entire portfolio selected or the entire account that holds all of your portfolios and assets.
The Default Trading Settings menu is referenced from the Tools menu by selecting Default Trading Settings.