In Shop mill/turn:

• Press the softkey [Menu select] until the rightmost softkey [CNC ISO] is shown
• Press the softkey [✔ CNC ISO] to confirm

In CNC mode:

• Press the softkey [Menu select] until the softkey [IBN] is shown. Press it
• Press the softkey [HMI]
• Press the softkey [Logical drives]
• Press the softkey [Net Connections]