I've just noticed that I can now schedule the car with a "commence charging" time and also a "departure time for pre-conditioning" simultaneously via the app. I'm pretty sure I was never able to do this previously. A recent app update?
You have to do it in the correct order for it to work - set the departure time first with just pre-conditioning (not off-peak end) and then turn on schedule charging start time in the other tab. It then seems to hold on to the pre-conditioning departure time, where previously this action would have disabled it (unless I'm mistaken and this was always possible). If you do it in the opposite order, then setting the pre-conditioning time will disable the schedule start time.
The main page of the app now reports the simultaneous behaviour:
You have to do it in the correct order for it to work - set the departure time first with just pre-conditioning (not off-peak end) and then turn on schedule charging start time in the other tab. It then seems to hold on to the pre-conditioning departure time, where previously this action would have disabled it (unless I'm mistaken and this was always possible). If you do it in the opposite order, then setting the pre-conditioning time will disable the schedule start time.
The main page of the app now reports the simultaneous behaviour: