The keys are the main bit I've been playing with. I've got another thread in the general forum all about them.
I did click of some steering calibration thing. It made me turn the wheel left and then right. Seemed to work fine but didn't know exactly what I was doing.
I've also captured some telemetry data. I used the trigger module to start the logging. All the vitals from the car come up and can be replayed - eg throttle position in %
I don't have any DTC to clear so can't test that. Can't see why it wouldn't work.
Some features of GDS software require internet / or dealer certification. I don't have GDS dealer cert or the PIN for my car. GDS dealer cert is available though for a little $$.
Normally you need PIN for new key immobiliser chips, but I used a "sniff/clone" method and didn't need it. You don't need PIN for adding remote central locking FOBs. I think dealer should / could give me my pin if I needed it.
I got my VCI from a OBD2 seller in china. Check alibaba or ebay. Heres an example ebay link. I got mine a bit cheaper.
2017 GDS VCI for HYUN-DAI with Trigger Module OBD2 Diagnostic Tool Code Reader | eBay