disabling channels in steps

[drphoto]

I have found that to avoid unwanted interactions between scenes that share a common LED fixture that if the initial step requires the fixture to be OFF then the channel must be disabled, not just set to DMX level zero. However, in editor when I disable the channel on the initial step, it disables it in the second step as well. I thought all steps were independent. Also, when I disable the the channel I have to be careful where I move the mouse or the channel will turn on again. This gets very frustrating.