David Stevens wrote:Another way to do it would be to have a particular action "turn on" only when the programme that creates the files is active and/or "in front", as you're only going to want to back up changes when you're working on something. Would that be an easier way to do this
Actually, capturing items while the application is active is the most problematic time to do so. Documents are often "in flux" or only partially written and capturing them at that point in time results in an invalid or incomplete copy of the actual document data.
Applications that write out the entire document at once (like most word processors and graphics applications) are safe to capture once written and would be best served by monitoring a folder for new items.