Z SWITCHES Parameter 268 is a collection of single-bit flags used to turn servo related functions on and off. The left and right cursor arrows are used to select the function being changed. All values are 0 or 1 only. The function names are:Z LIN SCALE ENUsed to enable linear scales for the Z axis.Z INVRT LN SCLUsed to invert the Z-axis linear scale.Z DSBL LS ZTSTUsed to disable the linear scale Z test.Z ZERO AXIS TCUsed to return axis to zero prior to a tool change.Z 2ND HOME BTNUsed to move axis to coordinate specified in Work Offset G129.Z NEG COMP DIRUsed to negate the direction of thermal compensation.Z DELAY AXIS 0Used with an APL to ensure Z axis is zeroed before A axis of APL.