You could also use a script which translates some other button into shoot.
Maby you know the link for scipt ?
Very thanks for the remote usb advise .
I made a remote usb but he can just do photos but when i go to the move mode it changes into - foliage maby you know what to do ?
Actually thinking about this more, you'd have to run the script all the time (with autostart) otherwise you wouldn't be able to start it, since that also requires the shutter button.
I don't know of any existing script that does this, you would have to write it. A loop that does wait_click and does either halfpress or fullpress depending which button is pressed.