Hello!
Because I'm an native german speaker, perhaps I dont't have understood your target right. Is your answer solved already?
I'm using the Dropbox for an overall sync of the Photo Mechnic complete folder. The folder in the original path C:\Users\M\AppData\Roaming\Camera Bits, Inc\Photo Mechanic is an symbolic link to the folder D:\Users\M\Dropbox\Photo Mechanic.
So it would be possible to work on an other machine with same configuration, if the desaster like defective hardware is coming. For a colleague I have it set up so that he can then switch between desktop and laptop. This is working properly, any change of config would be synchronized, changes in codereplacement files etc. too.
--Michael--