You can indeed! Just hold down open or close. I think I'm right in saying that anyone can open the roof from the fob but for closing from the fob you need comfort access? Not 100% sure though. Someone will clarify! I have comfort access and I can raise and lower the roof from my fob.
The smart module will give me one-touch and allow me to raise and lower whilst the vehicle is moving though, which is really like. That said, I found some settings in Carly last night for allowing roof movement at speed, but I haven't tried coding it yet to see if it works.