Driver profile
 

When you set a driver profile to a key, does it remember the drive mode that was selected.

Fraid not, always goes back to comfort mode, this is because it is the mode that CO2 emissions are based on.

Yes it does, If you setup an Individual Profile. (Reading the manual in-depth - sad).
Wanted to turn off permanently the Start/Stop feature! Very annoying.
Setup an Individual driver and select away.

Nope sorry but your wrong. I have set both keys up to auto start with Eco mode and EVERY time when getting into the car with either key it always starts in comfort mode despite what the manual says. This is a shame tbh as I want to start in Eco mode and then change it if I have to.