Just a note. I have done this on clips in the timeline. I have used this technique in other programs and wanted to use it in Resolve. In the other programs I had access to a transparency control to vary the amount of the effect I wanted blended with the original clip. In Resolve I basically accomplished the same thing by using the Luma controls for what I wanted. If any one knows of another way to control the transparency of a clip in the timeline please let me know.