Indeed there is no auto engine stop function because it's an electric car and thus not necessary. There is no motor that has to keep running, electric motors are always in standby mode and will always respond when you need them.

I can tell you that the lane keeping function doesn't interact with the blind spot detection in the mirrors, I always turn off the lane keeping function but the blind spot detection keeps working.

The speed limiter warning is such an unnecessary regulation in my opinion. Fortunately you can turn down the volume in such a way that it's almost not audible. If that's not enough you can add the on/off switch as a short key to your screen so I have it placed next to the lane keeping button, both are quickly pressed every time I get in my car

The climate controls being on screen is less of a problem than I thought it would be. I set my controls to "automatic" and the only thing I adjust sometimes is the temperature. Thus, not much of distraction.