A NEW "TOOL" OR "FEATURE"
This option would act somewhat like a slip or roll edit only it would slip through the clips in the timeline:
Lets say I wanted to move the insert shot (highlighted clip 85-1) forward or backward within the time line but did not want to have to trim the master shot (85A-2). As I selected the "new tool" the master clip(85-2) would stay trimmed(performing a roll edit on to the clip(s) attached) to my insert shot (85-1).
let me know if this makes sense, if not. I will try to further explain.
maybe this is a wasted tool, but hey, i've seen far less useful features.
If at first you don't succeed, keep ****ing it up 'till it works!