The [S6] tool on the Tools softkeys allows you to Flip moving head fixtures:

If you just ran a cue and the moving head fixtures went to their new position 'the wrong way', you may want to Flip them. As moving heads have two ways to reach every point on stage this sometimes happens when you're positioning a fixture and you don't consider where it came from. There is no sure-fire way to avoid this happening; it is only evident after you run the cues. One rule of thumb is to always tilt the fixture towards you first before you position it. Following this one rule normally keeps you out of trouble.
If you do find that the cue did not position the fixture elegantly (i.e., they went the wrong way around) just select the fixtures and use the Flip Tool and update the cue.
To use Flip, press and hold the [TOOLS] button and select [FLIP]. The selected moving head fixtures will flip around on stage landing at the same location they were in originally, but using different pan and tilt values.
Once you use the Flip tool once, it will be the 'last tool' as shown in the Tool Status Bubbles:

Pressing and releasing [TOOLS] will perform the flip operation again.
Note:
You must be aware of what you are doing when you use Flip. For instance, say 10 fixtures go to Down Stage Center in a cue using the DSC palette. If you don't like the movement of one of them, you may be tempted to flip it. But, be aware that you are removing the reference to DSC and putting in raw values for pan and tilt. If you update this cue, you've lost the usefulness of the palette in it for that one fixture. If you update the palette, you may have just goofed up many other cues. One option is to go to a prior cue and flip the light rather than flipping it in the current cue.
See Also:
Tools