Remove the Batten Board
Once a few rows are laid down remove the batten board and insert a spline so that flooring can be installed with the tongue points in the opposite direction. Make spline material twice the width, but the same height, of tongues on the planks. Squeeze a light amount of glue into the groove on the plank attached to the floor and gently tap the spline in place. Place the row of planks facing the opposite direction and lightly tap them in place using a block to protect the planks.