Environment: Smart Cloud Connections
Refer to below URL:
https://www.ibm.com/support/knowledgecenter/SSL3JX/files/c_files_sync_refresh.html
You can Use My Drive to work with files offline, files you add and edit in My Drive are automatically synchronized to your desktop so you always have the latest version of the content.
Important:
To use this feature:
1) your organization must support sync.
2)If you are a Microsoft Windows user you must install IBM Connections Desktop Plug-ins for Microsoft Windows and if you are a Apple Mac user, you must install IBM Connections for Mac.
Please note:
Syncing is intended for files that you own, or for personal files that are shared with you. Files owned by a community (that is, files that are uploaded directly to a community rather than shared with a community) and library files in communities cannot be synced. The menu option to add such a file to My Drive is not available, but you can drag a community-owned file into My Drive and may want to do so to organize files in a central place. Note that doing so creates a personal copy of the file. Changes you make elsewhere will be synced to the file but changes made to the original community or library file will not be synced.
Per customer:
The problem with this design – is that users need to copy files from the communities – to their own “my drive” – and act as a librarian to put them back later for the members of the community.
That’s not really a viable option.
A Connections community file folder or file should be able to be “synced” like “my drive”. Too much manual intervention. It wont work.
Customer hope:
Need a way to work in a community files app “offline” and sync to the cloud when online again.
It's almost been 6,5 years and multiple entries on this question are still open and 'under/future consideration'. Furthermore this functionality is working on windows. How can basic file sync for community files STILL be non-existent on mac. Please, if anyone ever reads this. Fix. This. ASAP.
Similar ideas to add community files to sync
https://connections-ideas.hcltechsw.com/ideas/IDEACNCTNS-I-200
https://connections-ideas.hcltechsw.com/ideas/IDEACNCTNS-I-572