The Invert Motor has a single mode named Invert Motor. If the
Invert input is True, the selected motor will have its normal “forward” and “backward” directions swapped. Any programming blocks after the Invert Motor block that would normally make the motor turn clockwise will instead make the motor turn counter-clockwise, and vice-versa.
Once a motor direction is inverted, it will stay inverted until another Invert Motor block changes it back with
Invert equal to False.
For information on the normal motor directions, see:
Medium Motor Power and Direction
Large Motor Power and Direction