AllSync & AllDup

Can I suggest that some actions other than REMOVE be added to the operations that can be done on the results list?

In my particular case I can easily configure AllDup to find all files with a certain extension and automatically group them by name, however I don't want to remove the duplicates I actually want to create exact duplicates by copying the oldest/newest/selected over all the others in the group

You select one file at a group and want to replace all other files at this group with the selected file?

Yes that is correct.

Why do you want to copy a file with content x over a file with the same content?
Do you want the other fields to have the same timestamp?
Or are you talking about hardlinks?

In general the contents of the file won't be identical. Normally I would want to select the most recent and "distribute" it to overwrite all identically named files in the folder structure. These are usually script files that exist in a lot of folders. Occasionally I update the master and I want to automatically update all the others. At the moment I have a Perl script to do this but AllDup would make a more generic solution.

Why dont you create a hard link of the master file at the place of all other files with AllDup?
This has the advantage that you never have to update all the files again!