Correct. You get one remote standard with the base 2-way accessory and can keep a stock remote programmed as well. Or, they also then sell the same 2-way remote as a standalone so you can have two of the 2-ways if you want, effectively replacing all of your stock remotes. I think you can have up to 3 other remote fobs programmed at once.I checked about a month ago and the shop said it now available, but they had not got any in at the time. If I understood the service manager correctly he said they would need to install a new receiver. You get one, 2 way fob, and he is not 100% sure, but he thought the old fobs could be reprogrammed to work with the new receiver.
It was good to see the pictures, I did not realize the new fob was was so thick.