Yes, agreed.Depends upon the battery, in good condition it should be no problem to use the roof without the engine running, if low there will be a MFD warning to use the engine. However since most people have to sit and operate the switch from inside the car the choice is up to you.
It should also close everything if you just hold the lock button and you can also set it to unlock all doors on one click with vcds. If you have the auto headlamp and wiper function you can set the windows and sunshine roof to close when it rains.Well, I tried ours -
1 click unlocks drivers door.
2 clicks unlocks passenger.
3 clicks did nothing.
3 clicks & hold on 3rd click opened windows & put the sunroof back. so we don't have it.