I want to transition between clips by increasing the speed a few frames before the cut then decreasing it a few frames after the cut. I would like to keep the clips in the same place while I do this, but when keyframing the "time remapping" effect the clip moves. I tried to add a marker to the clip so I could center it after applying the time remapping but the marker disappears when the effect is applied.
Is there a transition/plugin/method that would allow me to speed a clip up before a cut then slow it down after a cut without moving the clip?
I don't think what you want is possible. Slowing it down will extend the duration. Speeding it up will shorten it. There's really no way around that.