Depending on what you’re doing, why not split the clip after the keyframes, then duplicate the clip and move it after. Then if it’s footage, slip it to match up the timecodes. Another way to use paste attributes a little differently is to duplicate the clip with the keyframes, then copy the footage you want to fill it and when you paste attributes, paste the content rather than the keyframes. This pastes content into the keyframes you originally wanted to duplicate.
Rich Rubasch
Tilt Media