To add an order type button
The order type buttons are added using the Set Order Type buttons option in the Chart settings. Each button can have also have a customized label before it is added.
Click (the chart menu icon) in the top left corner of the chart and click (the settings icon) in the Chart menu.
Scroll to the Trading section in the Settings: Chart menu and click Set Order Type buttons.
The Order Type buttons pop-up screen displays.
Click "+" and click the drop-down arrow in the Order Type field to select an order type.
You can click the "x" next to a row to delete a button, or click "+" to create more order type buttons.
Optionally, click the Label field to customize the button name. View the Preview column to verify how the title will appear on the button in the order pane.
Click OK and Apply.
The custom buttons appear in the order pane in the Chart.
Click Save to exit settings and save the changes.