Operating Roadster top from outside car

[susu]

I need a bit of advice from our 370Z roadster owners who have owned this beauty for longer than me (2 weeks!) I understand you can operate the roadster top down and ?up from the button on the driver side door handle with your key fob in your pocket or nearby. However so far I can only get the top to come down in this manner after pressing the button for the? >10sec I havent managed to get the top to go up . Maybe I'm missing some other steps and the manual does not explain this well at all
Could somebody here tell me how ...what steps or requirements eg start button must be on "on " position or windows have to be fully up for me to get the top up in this manner.