Hello,

I use two cams. I have all the tracks in sync (by the sound) .

depending of the moment, the good track is not the same, so I want to make visible one track for some time, the two ones at some other time and the second one alone at some other time.

right now I can nearly have this result with fades, I also can make one track half visible, but can't change the visibility level progressively.

in fact I want a transparency effect with key frame.

I'm used about keyframe (I often do picture in  picture or zoom/move). How can I do the same with two full frames?

In other way how could I add handles to the level curve?

thanks

jdd (VDL16+ or any - I can upgrade) - I do not find it in the product list :-(