Quote Originally Posted by kmclights

However, updating a preset without destroying the fade times on the intensity attribute is the real time saver for me, if there is a way to do it. What I need to do is update the preset, not really re-snapshot it. Some kind of command similar to a lighting desk that will only update the attributes that have changed and leave everything else alone.
Fair enough. Leaving the performance side of my enquiry, can someone answer my issue with editing/updating presets?

Thanks,
Kevin