The Main Tab has properties that affect the display of information on the Main Window as well as a few general properties that affect the display of information for the entire application.
| 1 | Account | Hide or display the Current Trading Account field on the Main Window. |
| 2 | P&L | Hide or display Profit and Loss on the Main Window. |
| 3 | Cash | Hide or display Cash on the Main Window. |
| 4 | User Name | Hide or display the User Name on the Main Window. |
| 5 | Currency Format | Sets the system wide currency format (with or without decimals). |
| 6 | Tab Font | Adjust the default tab strip font settings. |
| 7 | Grid Font | Adjust the default grid font settings. |
| 8 | Dual Layout | Allows user to save two different workspaces called Primary and Secondary |
| 9 | Force Right Click | For a pen tablet, allows the users to use right click functions |
| 10 | Implied Prices | Indicates with ( ) that some of the volume is implied through a spread. Implied prices can now be turned off completely |
| 11 | Bandwidth | Normal or Reduced. Reduced eliminates some market messages so a wireless user is more efficient. |
| 12 | Use Held Settlement | If settlement is published after the market open then the new value updates risk calculations. Otherwise the new value is not applied until after the trading session. |
| 13 | Account Display | Allows you to change how your acct is displayed. |
| 14 | Keyboard Order Entry Tickets | Hide or show the keyboard entry tickets. |
| 15 | Owner Form | Allows you to minimize Your main window without minimizing your entire work space. |
| 16 | Always On Top | You can now force T4 windows to stay on top of other applications. |
| 17 | DDE Format | Allows you to change format to Open Office. |
| 18 | Change Password | Change password for your T4 login. |
| 19 | Save Settings To a File | Save your T4 workspace to your local PC. |
| 20 | Load Settings From File | Load your T4 workspace from the saved location on your local PC. |
| 21 | Change Current Layout | Switch between system layouts without having to restart. |