No one can tell you what camera settings to use from one minute to the next. There are too many variables, given location, lighting, speed of moving subject, just to name a few. You either know how to set a camera or you learn to. DJI's system includes various features such as over exposure alert (Zebra Stripes) and a histogram. You will need to do your own experimentation along with numerous YouTube vids to get a basic understanding on which manual functions need to be adjusted when and where.
As to "recording" to your iPad, that is cache video and low definition. All Main Hi Res videos/pictures are recorded to your SDCard. From there you will take them to a computer with a video editor if you wish. Video with smooth motion is generally obtained with a higher frame rate so 60Fps is preferred, also with smooth control stick input...all things you will just need to practice. The use of ND's to add a motion blur and more cinematic feel can be used...again plenty of YouTube tutorials to explain their function. There simply isn't any "Magic bullet" you will need to learn to use the settings you have and know how to adjust them to your shoot site.