@berayksl Hi there,
In the VOXL2 file /etc/modalai/vio_cams.conf all the cameras should be listed as a JSON record. the top-level disable attribute of each record can be edited to turn cameras on and off (make front true and the others false for just the front camera).
On calibration, instructions can be found here.
If the camera's physical positions changed from delivered, then you'll need to update the extrinsics.