Hi Bart,
If you go through the
Web part management article, then following it, in the CMSSiteManager -> Development -> WebParts you will find there are
2 options:
1.
WebPart is inherited (e.g. News List), there is the field "Inherited from:" and if you clone this kind of WebPart,
no physical files are created because it is inherited. Just for example: News list is inherited from the Repeater. So if you click "Clone WebPart" there
isn't option for files path in the dialog window.
2.
WebPart isn't inherited (e.g. Repeater), there is no inheritance. If you click "Clone WebPart" there
is special field for files path in the dialog window (make sure that "Clone web part files" is checked).
Best regards,
Martin Danko