Can this version copy unc paths for example:
\\%Machine name%\C$\rest of path
C:\rest of path
This is something I really need for my work environment and can imagine would be very useful to many
Unfortunately, not this version, no. There is a work item for this however:
Alternatively, one of the previous versions had this feature (3.0):
If you choose to downgrade temporarily, make sure to uninstall the existing version first since the installer does not properly support downgrading.
The feature will come back in a new version, of course (hence the work item above).