Metadata editor JS is /libs/dam/gui/coral/components/admin/metadataeditor/clientlibs/metadataeditor/js/metadataeditor.js.
Metadata is updated with the below request on click of save and close button
![Screenshot 2019-11-28 at 22.13.46.png Screenshot 2019-11-28 at 22.13.46.png](/t5/image/serverpage/image-id/20669iE4D3954BC872CF24/image-size/large?v=v2&px=999)
Adobe suggested way of adding more metadata is to
1. create metadata profile with the properties, (Metadata Profiles )
2. apply it on the asset folder,
3. update metadata schema and map the fields to the new fields (Metadata Schemas )