Can OneDrive mobile sync a specific local folder on Android or iOS?

Hi,

I would like to understand what is officially supported regarding folder synchronization
in the OneDrive mobile app on Android and iOS.

Specifically:
- Is it possible to select a specific local folder on a mobile device
  and configure OneDrive mobile to automatically sync that folder?
- Or does the OneDrive mobile app only support manual uploads
  and limited automatic features such as camera roll backup?

I am looking for an official clarification on the supported behavior
of OneDrive on mobile devices.

Thank you.