TradeStation Help
The Options tab on the Format Account Number dialog allows you to select the desired account number you want to use for your Options account orders & positions, and strategies.
Access from the Format Account Orders & Positions dialog and click Account No. The Format Account Number dialog is displayed.
Futures Account No.
Contains the Futures account number(s) associated with the active window.
You can also use the right-click shortcut menu item for Account Numbers for Orders and Positions to select the account to use for an asset class.
Set as Default - Check this setting to apply these settings as the default for all future Account Orders & Positions.
Click OK to apply changes or Cancel to exit without changes.