Center Move 1 in detail

Shown below are figures to help you visualize what the steps of Center Move 1 involve.

Move 1: V-1 H-1 V U   V-1 H V U-1

Figure 1a Figure 1b
V-1: Rotate the center vertical slice down toward you (counterclockwise) H-1: Rotate the center horizontal slice to the right (counterclockwise)
Figure 1c Figure 1d
V: Rotate the center vertical slice up and away from you (clockwise) U: Rotate the top side clockwise
Figure 1e Figure 1f
V-1: Rotate the center vertical slice down toward you (counterclockwise) H: Rotate the center horizontal slice to the left (clockwise)
Figure 1g Figure 1h
V: Rotate the center vertical slice up and away from you (clockwise) U-1: Rotate the top side counterclockwise
Figure 1i
The move is complete, and has rotated the middle-center piece on the left face 90 degrees clockwise. Use the Reverse of Move 1 to rotate it 90 degrees counterclockwise.

Continue rotating the middle-center pieces