How can I duplicate a shape layer in a Premiere Pro extension?

[H-FITS]

How can I duplicate a shape layer in a Premiere Pro extension?
I know that Track.overwriteClip() can "duplicate" a new clip for source-linked media, but how can I duplicate a graphic clip?

[Bruce Bullis · Accepted solution]

There is no ExtendScript API that allows such duplication; we plan to offer such duplication via UXP extensibility, in the future.