Yes Mike you can manually precondition through the app. I always use this as I’m always leaving at a slightly different times. I just tap it about 15 minutes before I leave. Only once has it not worked and that was yesterday funnily enough as another app update happened over night.
TBF to Renault they are always trying to fix the app as it doesn’t work well for a lot of folk. The thing in common is smart chargers? Particularly ohme? but that seems the same for the enyaq guys as well. My app has always worked and my charger is just a plug and play type. If I need to I just use the car or app for scheduling.