Why am I unable to adjust the width of the columns in my Account Window?

If you have previously checked the box to "Don't display this message again" on a particular window, you can reverse this action through the TWS Configuration window. Click the Edit menu option and select Global Configuration. On the left side, click the Messages section. Find the message you wish to re-enable, check the box in the "Enabled" column, and click the Apply button to save your changes and OK to close the window. The window will now re-appear the next time it is triggered…

To add or remove columns from the Orders and/or Trades tab in the BookTrader:

1. Click on the Configure (wrench) icon in the top right corner of the Orders or Trades section
2. Select Configure Order Columns or Configure Trade Columns…

Yes, you can add or remove columns from the Orders and/or Trades tab in the Market Depth Trader by clicking on the Configure (wrench) icon in the top right corner of the Orders/Trades section and selecting Configure Order/Trade columns. A window will populate with the existing columns on the left and the available columns on the right. To add a column, find the column you wish to add in the "Available Columns" section and click the "Add" button in the middle of the window. To remove a column, find the column you wish to remove in the "Shown Columns" section and click the "Remove" button in the middle of the window. Once finished, click the Apply and OK buttons at the bottom of the window…

You can create buttons in the Market Depth Trader to perform a number of actions including creating orders (and transmitting instantaneously), modifying orders, closing positions, and more. To do so, click on the Configure (wrench) icon in the top right corner of the Buttons section. You can add new buttons by clicking the "New..." button on the right hand side. Select the action you wish to perform from the "Select Action" drop down menu and customize the button in the "Customize Action" section. Once finished, click OK to close the Configure Button window. If you are satisfied with your button configuration, click Apply to save your changes and OK to close the window…