As far as I can see, editing of IPTC/XMP data is available in browser mode, only. Also, in browser mode, there is no menu item, the only way to trigger editing of IPTC/XMP data is the context menu (right mouse click).
I suggest:
- Add menu item for editing IPTC/XMP data to browser mode.
- Support editing IPTC/XMP data in view mode.