Android Usage Notes
tip
The TL;DR version is: the Open and Import modes on Android aren't too different in practice, and you can usually use either one, often combined with keepLocalCopy.
Screenshots
Sometimes pictures are worth a thousand words. Here are some example screenshots of the Open and Import modes on Android.
Notice that in the "Import Mode (unrestricted file types)" case, the list is taller than the screen.
| Open Mode (unrestricted file types) | Import Mode (unrestricted file types) |
|---|---|
 |  |
| Open Mode (restricted to picking pdf) | Import Mode (restricted to picking pdf) |
|---|---|
 |  |
Resources
Assorted links to relevant resources: