The Drive Library Sort is rather twitchy tying to Sort A-Z, Z-A, and can't figure out the up arrow and down arrows. The sort is intermittent and lags a lot and doesn't save the sort once I set it the way I like. After closing the app and restarting it the sort defaults to what appears to be a random sort, maybe the order of what was scanned is the default. Please consider having the sort order saved so the same order is presented when app is started... Love this app !!! Thank you !!!