In the brick repeat, every second row is shifted halfway in the horizontal
direction. You can create the brick repeat with the Simple shift symmetry

,
by dragging the top or bottom side of the control path horizontally,
when the mouse pointer changes to the
horizontal shear cursor

.
You can also use the Half-turn symmetry

to create a fractional brick repeat with a smaller horizontal shift in which
every other row is rotated 180°.