It defaults to the E key. If you hold shift, ctrl or alt while holding the E key, and then release the E key first, it will continue to act as if you hold the E key down, even if you release all the other keys. This causes very strange functionality (WASD to move tokens causes them to just pop from square to square without animating the movement), and can only be fixed by tapping E again, and then grabbing and dragging the token.
It defaults to the E key. If you hold shift, ctrl or alt while holding the E key, and then release the E key first, it will continue to act as if you hold the E key down, even if you release all the other keys. This causes very strange functionality (WASD to move tokens causes them to just pop from square to square without animating the movement), and can only be fixed by tapping E again, and then grabbing and dragging the token.