Support for alpha channels with "stacked" presets and in SuperScenes

[markov]

Along the lines of other questions relating to expanding support for Alpha channels in Daslight, it would greatly enhance the flexibility of Daslight if support for alpha channel (transparency) were provided for stacked presets both in live mode and SuperScenes. For example, if I had a background scene active that illuminates all fixtures blue and then enabled a scene with a color chase of alternating transparent (alpha: 0) and orange (alpha: 100), it would effectively cause orange to chase through the blue lights. If I mixed the same chase scene with a green background scene, it would then chase orange through green. Presently alpha support seems to be limited to allowing masking only other color FX within the same preset. Thanks.

[GregorCologne]

Noted for discussion, too. Thanks for the great idea!