To configure notification settings, open the 'Settings' menu. It is located in the upper toolbar 'Help' → 'Settings' or in the bottom left corner of the application, in the toolbar.
You can also open 'Notifications' by clicking on the bell icon in the bottom-right corner of the screen.
Check the ‘Text’ box if you want to see text notifications of corresponding events: ‘Place’ (placing an order), ‘Fill’, ‘Cancel’ or ‘Reject’ (your order has been rejected).
Check the ‘Sound’ box if you want to hear sound alerts when ‘Place’, ‘Fill’, ‘Cancel’ or ‘Reject’ events happen.