You can edit an existing calibration object to change the position of the volume origin.
To change the volume origin:
After you have completed the usual calibration and setting volume origin procedures, load the calibration object that you used for calibration. To do this, on the Objects tab, click the Load an Object button and locate the relevant calibration object. The default location is:
C:\Users\Public\Documents\Vicon\Tracker3.x\Objects
On the Objects tab, click the Pause button .
Move the calibration object in either of the following ways:
In the Set Volume Origin section, click Start.
In the view pane, the cameras move to reflect the new position of the origin.