Bracketing can be done with one button press. The downside is that the resulting files are 12 bits deep. To do this, set the Camera>2>Bracket Settings to Self-Timer 2 seconds. This delay will only be for the first shot in the sequence. Then set the Drive Mode to BRK C. If 14 bit files are desired set Drive Mode to BRK S. In both cases set the number of steps and the desired step increment.