[mvincenzes]

Adding support for network drives involves having to support SMB which is not a simple thing I believe. I will have to see if there are open source libraries for all of the operating systems to handle that, otherwise implementing it myself would be a huge undertaking. There are also other options like ftp/sftp and IP address based options for connecting to a remote server that involves a lot of major changes to handle the communication over those protocols. So this is something that will involve a fair amount of dedicated time, but I unless I get more frequent requests for this, it's not something I can prioritize over other requests that I get more frequently. 

Mike

Might not need SMB and network drive.

Synology has a "Drive" application (on Android and iOs) that appears to work like apple icloud, dropbox, etc.
I have thie drive app on my Samsung galaxy and when I select mobile sheets: IMPORT -> System File Browser, the "Drive" app is in the system file browser's "open from" list along with  OneDrive, SD card, etc.
I can select a file from the synology drive and it imports properly.
Would be cool if I could do the same thing with the sync.