The Blue Marker displays on the Trade Line only when Order Attaching is activated in the Trade Mode.
To activate the Trace Order feature, press Order Attaching on the Order Entry Panel.
To confirm a traced order, click on the chart when the Blue Trace Bar to display the Confirmed Traced Order window. Refer to the Figure inside the chart below.
Click Confirm to display a Dot in the Modify Price icon on the Order Toolbar. Refer to the Toolbars inside the black rectangle on the chart below.
To remove tracing on an order, click on the Dot in the Order Toolbar (The Order Bar is highlighted.) to display the Tracing window. Refer to the lower right Figure.
Click Yes to remove the Dot and display the Double End Arrow inside the icon.