You can customise the BitMEX trading dashboard to suit your personal preferences. When you log in, you will see the 'customise' option on the top right-hand side of your trading screen. Here you can toggle different widgets on and off simply by clicking the boxes.
Alternatively, you can toggle the interface from simple mode to advanced mode by toggling the blue button above the dropdown. In advanced mode, you can see additional information such as margin, instruments and open orders in a separate widget.
Additionally, you can drag and drop the individual widgets to different places on your trading screen if you prefer a different view.