This is something that I use in Lightroom a lot. If I could apply the same effects to a clip as to the previous clip I worked on, if would be most helpful. Yes, you can set up a "filter package," which I frequently use to make a "base" adjustment to most everything that comes out of my camera. But there are many occasions when you just want to apply the same group of filters at the same settings as one you just did to only a few additional clips. For example, if you have a series of related clips with same subject/lighting.
Would anyone else find this useful? Or does this already exist?