Once kOS for Mac has communication with the CineDrive Brain or Second Shooter controller, the next step is to select an axis to calibrate the range of movement. The Slider axis is a reasonable choice with which to start. To select the Slider axis, press the Slider button in the axes button region.
The currently selected axis is identified as the button with a black line underneath.
The axis must also be active if you intend to
playback motor paths. To enable the Slider axis, press on the Enabled
button.
With
the Slider axis now selected and active, the next step is to calibrate
the axis. An axis must be calibrated before key frame positions may be
recorded. The calibration process specifies the range of movement by
identifying the begin and end positions of the axis. To calibrate an
axis, first press on the Reset Axis button to clear any previous
calibration parameters for the selected axis.
A warning message appears asking for confirmation. Once the axis has been reset, it's ready to be calibrated by a two step process. Drag the motor slider handle left or right to set the begin position.

Once you've positioned the slider at the begin position of the range of motion, press on the Mark Begin button. A successful Mark Begin is indicated by the button text changing from gray to green.
Now drag the motor slider handle to set the end position. Once the slider is at the end of the intended range, press on the Mark End button. Successful calibration is signaled by the Mark End button text changing from gray to green.

When
both the Mark Begin button text and the Mark End button text are
green,
the calibration process is complete. The selected axis is now
calibrated and ready to set key frame positions.