I spend a lot of time trying to match second-rate footage. Adjusting framing and adding quick color correction in FCP. Sometimes, you look at it the next day and you went to far, or not far enough. You start adjusting again and you have to copy and paste the new settings into every instance of (say) the close up which appears 14 times.
What if (in addition to the current paradigm) you could assign a visual effects bus to the video clip (the clip not the track). If you wanted to work this way - you'd only have to change the settings once and it would affect every clip assigned to that bus. No more copy and paste 13 times.
If you don't like audio metaphor - it would be kind of like styles in MS word. Change the style, change the look of every paragraph linked to that style.
I'm not missing something that already exists, am I?