Driver command that sets the DCC throttle setting of this loco equal to the throttle setting of the loco ahead.
The command remains effective until this loco reaches a target trackmark.
The intended application of the command is to control uncoupled rear banker engines while assiting a train up a grade. The target trackmark is situated at the top of the grade.
There are 2 menu items: the first to select the target trackmark and the second to select an offset in throttle setting.
Different locos travel at different speeds for the same throttle setting, so the banker may require to be set at a positive offset from the train engine's throttle setting in order to keep up with the train.
The identity of the current target trackmark is given at the bottom of each menu.