Juri Linkov <juri@linkov.net> writes:
> Sometimes an absolute path is needed too even in project directories.
> Maybe it's possible to find a new prefix argument to copy
> a project-root-relative path like 'C-u C-u w'?

I initially considered M-1 w, but that loses the ability to mark files
and then only copy one of them.  C-u C-u seems good.

Here's the implementation.