The window wall has wood tracking and all five shoji screens slide into a pocket on the right side of the window wall.
Below is a picture of the screens nested in their pocket, the adjoining shoji screen is the master bath entrance.

Master bath shoji with a wood metal combined tracking system. The upper tracking is wood and the lower tracking is a metal strip installed in the marble that engages a groove inlaid into the bottom of the window screen. (See detail below.)