What I am really after is something like Evernote but for the single folder that is in a PC's Appdata/Roaming/Camera Bits/Photo Mechanic folder that contains all the SNAP, text and xmp files etc.
I use Evernote to hold all my photo event captions that are being added to all the time going way back to the seventies and can access them from my laptop, PC, tablet and mobile phone. If I add or alter something on Evernote on my tablet it is quickly available on the PC or laptop when I start using them.
So, what I want to do is set up a system that allows me to do that with PM on my laptop when I'm away and at the same time have the PC updated already when I get back. Sugarsync will do that but it is 79 USD although you do have the bonus of 100 GB of cloud storage. I would just have to close the other cloud accounts down that don't offer that feature.
This is the website and you can see in the left column the ability to sync folders across devices
https://www.sugarsync.com/sync_comparison.html .
David