[LoganW]

Perhaps this is a unique problem or perhaps there is an obvious solution but here's what I'm running into:

I read and edit many books simultaneously and I'm very picky about fixing typos and any formatting issues, no matter how minor. The trouble is that I can't always remember which books I've edited and which I haven't.

So out of say, a dozen books, I would like to be able to "send to device" only those ones in which the library version is newer than the device version and leave those alone for which I already have the most up-to-date version on the device.

I don't know if this is even possible, since the timestamp for Date Modified on the Device is probably the copied timestamp rather than the last-edited timestamp.