Question Regarding Flash Mode and Target Beams

[Adam Richard]

I'm wanting to use transition mode, flash mode, and target beams at the same time to be able to trigger target beams and have them fade out slowly as flash and transition does with any other type of cue. But target beams will stay fully on until the transition time is over (say, 3 seconds) and then go completely off after that time has elapsed rather than fading away in a slow and sweet way
Anyone have any ideas?

Thanks!
Adam