The "coupée de départ" (cut edege start tile) exists with or without tenons.
It depends on the tile cap you choose. You can see an example of fixation in the slideshow above.
The coupée de départ Tile is the first laid in cap, it is this tile that starts the row and facilitates the work of the installer.
This tile is attached directly to the frame and is the tile that the others rely on.