I have tried several of the options mentioned in this thread using the cloud, wireless drives, etc and it is just too frustrating and I just go back to doing everything on my computer where things are straightforward, fast and easy to do. All of the things that annoy and slow me down on the iPad are limitations in iOS which is a shame because the hardware is certainly powerful enough. Here is to hoping iOS 13 gets rid of some of these limitations, though I'm not really holding my breath.