I've owned cars that let you open windows by continuously pressing the unlock button on the key fob (including my 2003 Altima), but on the only car I've owned that let you close the window without using the inside switch (Audi A3), you have to put the key in the door lock and hold it in the lock position.
With a society as litigious as the US, I'm surprised to hear that there cars that are actually sold here that let you close windows by simply pressing a remote control. The remote used with the Leaf is particularly annoying to me in that I'm often setting off the panic alarm if I sit down with the key fob in my front pocket, because the button is too easy to press; other cars I've had including the Altima require a much harder push to do so. In that case I'm glad Nissan didn't offer that feature on the Leaf.
Blue Ocean 2012 Leaf SV, lost that 1st bar on 11/21/2015 at 26,435 miles.
Lease returned on 12/23/2015. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F
Now driving a 2015 VW eGolf SEL