Keyframes view for Multi clips

In order to have better correlations between 2 clips or more. the key frame window should display every keyframes of all the clips all at once. or at least allow us to have this type of view.
the same goes for the keyframe tray at the timeline. that's how animation will be much more flexible and easier.

This request has been discussed by several users on this forum. You might want to search for those posts and add your vote there.