Before I decide to purchase Litchi for my Phantom 4, I have a list of questions ... I use an iPad Air2 (128 GB) that is WiFi only. Will this work while I'm out in the field with no network/internet connection? Does flying a Litchi mission also save a traditional Phantom log that I can cloud-sync with DJI and with HealthyDrones.com? When flying a Litchi mission, are there equivalent failsafe methods as in the DJI Go app (e.g. when signal lost, battery critically low, RTH button on controller)? I understand that I cannot add actions to curved line waypoints. Let's say I have some waypoints. From W2 to W3, I have is set to curved line. However, from W3 to W4, I have it set for straight line (so that it actually reaches W4). Can I set some actions there? For instance, take a photograph? Finally, from W4 to W5 (and beyond), I have it set to curved lines. I'm sure I'll have more questions. Thank you in advance for insight into these questions/concerns.