Smode only implement the stype protocol as Control Device for camera tracking. If your device is well configured, you should see messages like this on the device panel:
Very used for XRProject

About the optical distorsion

Stype communicates tracking data as well as optical deformations to Smode.
On Stype's model, the otopic deformations are calculated according to the size of the camera chip.
You can konw the size of the chip, directly in the Tracker if it's Tracking System is connected to this device, or inside a connected Physical Camera if this one use the camera model.
These data are then automatically reinterpreted by Smode when using a Physical Camera.
The optical deformations are represented by the parameters K1 and K2 of a stype's Tracker.