Hi everyone,
At the beginning thanks you all for answer for my question.
Walter, why I want separate curve for every blend?
Firstly, I have object/project with already install projectors and screens. I don't know how many hours lamp projector worked to this day (they do not worked in blending mode), probably the difference are not so big, but they are.
Secondly, I work like Daniel with Vista Spider too, and there is that possibility, and more - I use it.
Finally, I'm rather a perfectionist and I like when every detail is refined :-]
Regards,
Sebastian