The footstraps come on the binding plate so you can adjust the angle of the stance as well as the position apart.
They are really easy to put on, just slide the 2 bolts into the track, place on the strap and binding plate in the required angle and tighten. It takes less than a minute. Works well if you share the board as you can just adjust it when you want.
The track flexes with the board, (which has a nice amount of flex) and I think you will find it on more boards in the future.