Grant,
nope, no need for an elevated license, I’m covered for now. Should anyone be digging around this parts, please disregard my comment above of ‘tobii_config’ writing the calibration under ‘~/.config/Tobii Config/’. It does write something there but actual last calibration served by ‘tobii_engine’ seems to come from ‘/usr/share/tobii_engine/db/config.db’ and is therefor shared by all users of the system.