When a file is marked as favorite on the Dropbox app it is downloaded to the phone's internal memory for offline viewing. Dropbox also "attempts to keep the file as up-to-date as possible and gives you the option to update the file manually". [source]
My question is - Is there a way to have Dropbox download the favorite files to an external SD card? I am aware of the "export" option, which allows you to save files to the external SD card, but it is cumbersome and does not keep the downloaded files up to date.