Hi guys I wondered if any could recommend something that would allow me to do the following via my mac / nas..

i use a qnap nas and would like to somehow attach an external drive to either the nas or my mac.

On this drive I would like to store a particular client directory and have it so I can leave the house with the external drive and my laptop and have the current files. Make amends to docs whilst out on the road and return home plug the drive back in and any new or modified files are copied to the nas drive.

obviously this would be repeated any time I leave the office and return.

ive tried the nas cloud but it's caught me out a few times when I haven't had reception or wifi.

im hoping this is pretty easy to do and would be a game changer if poss.

many thanks,

Devs.