How can I adjust the bar thickness on my chart?

In order to view data on a chart outside of regular trading hours, you must check the requisite option in Chart Parameters. In the chart, click the Edit menu option followed by Chart Parameters. In the "Chart Time Options" section, click the box that says "Show data outside of regular trading hours" and click Apply followed by OK…

It is not possible to create a chart with bars of equal trade volume in Trader Workstation Charts at the moment.

For more information on how to show volume on a chart, see How do I display Volume on a chart in TWS?…

Click on the View menu of your chart and enable the Bar Details Zone.

You can configure what to see in the Bar Details Zone from the Edit menu of one your TWS charts:…

In your TWS chart, click on menu Edit and Chart Parameters. In the area Additional Data and Features make a checkmark next to Option open interest. Click Apply and OK…