A system, comprising: a first machine and a second machine, the first machine comprising: a first wireless transceiver; a first global navigation satellite system (GNSS) receiver; a first memory encoded with first autoguidance software; and a first processor configured by the first autoguidance software to: provide a first wayline that dictates a path the first machine follows to traverse a field; receive a nudge command that initiates a deviation to the path followed by the first machine relative to the first wayline, without changing the first wayline to which the first machine can return; and communicate, over a wireless communications link, a signal comprising information about the deviation to the second machine; the second machine comprising: a second wireless transceiver; a second global navigation satellite system (GNSS) receiver; a second memory encoded with second autoguidance software; and a second processor configured by the second autoguidance software to: provide a second wayline parallel to the first wayline; wirelessly receive the signal via the wireless transceiver; and cause guided navigation of the path followed by the second machine according to the deviation, the deviation to the first wayline parallel to the deviation to the second wayline; characterised in that the communication of the signal is conditional and the second processor is further configured by the second autoguidance software to apply the deviation to the second wayline at a location adjacent to where the signal comprising information about the deviation was wirelessly transmitted from the first machine. a first machine and a second machine, the first machine comprising: a first wireless transceiver; a first global navigation satellite system (GNSS) receiver; a first memory encoded with first autoguidance software; and a first processor configured by the first autoguidance software to: provide a first wayline that dictates a path the first machine follows to traverse a field; receive a nudge command that initiates a deviation to the path followed by the first machine relative to the first wayline, without changing the first wayline to which the first machine can return; and communicate, over a wireless communications link, a signal comprising information about the deviation to the second machine; a first wireless transceiver; a first global navigation satellite system (GNSS) receiver; a first memory encoded with first autoguidance software; and a first processor configured by the first autoguidance software to: provide a first wayline that dictates a path the first machine follows to traverse a field; receive a nudge command that initiates a deviation to the path followed by the first machine relative to the first wayline, without changing the first wayline to which the first machine can return; and communicate, over a wireless communications link, a signal comprising information about the deviation to the second machine; provide a first wayline that dictates a path the first machine follows to traverse a field; receive a nudge command that initiates a deviation to the path followed by the first machine relative to the first wayline, without changing the first wayline to which the first machine can return; and communicate, over a wireless communications link, a signal comprising information about the deviation to the second machine; the second machine comprising: a second wireless transceiver; a second global navigation satellite system (GNSS) receiver; a second memory encoded with second autoguidance software; and a second processor configured by the second autoguidance software to: provide a second wayline parallel to the first wayline; wirelessly receive the signal via the wireless transceiver; and cause guided navigation of the path followed by the second machine according to the deviation, the deviation to the first wayline parallel to the deviation to the second wayline; characterised in that the communication of the signal is conditional and the second processor is further configured by the second autoguidance software to apply the deviation to the second wayline at a location adjacent to where the signal comprising information about the deviation was wirelessly transmitted from the first machine. a second wireless transceiver; a second global navigation satellite system (GNSS) receiver; a second memory encoded with second autoguidance software; and a second processor configured by the second autoguidance software to: provide a second wayline parallel to the first wayline; wirelessly receive the signal via the wireless transceiver; and provide a second wayline parallel to the first wayline; wirelessly receive the signal via the wireless transceiver; and cause guided navigation of the path followed by the second machine according to the deviation, the deviation to the first wayline parallel to the deviation to the second wayline; characterised in that the communication of the signal is conditional and the second processor is further configured by the second autoguidance software to apply the deviation to the second wayline at a location adjacent to where the signal comprising information about the deviation was wirelessly transmitted from the first machine.