UPDATE: For Cloud Station 3.2 follow these steps.
Did you know that you can share your File Station folders with your friends or colleagues using File Station?
IMPORTANT NOTE: You can only sync “root folders” (highest level of a folder in the File Station. Other folders will not appear on Cloud Station app.
It is actually very simple, but of course you need to install Cloud Station first.
Here is how you do it:
Click on “main menu” 
and on the cloud station icon:
Enable Sharing in Cloud Station:
Once you are in Cloud Station, click on “Sharing”:
Click on “Enable” on the folders you want to share:
Make sure the user has permissions to use Cloud Station:
Click on “Privileges”, select the user and click “Enable”:
And finally make sure the user has permissions to the folder:
Go to:
- “Control Panel”,
- click on “Users” and “Edit”
- and check the user has permissions to the folder:
and you are done with the set up.
Access the folder through Cloud Station
Of course, for users to be able to access the folder through cloud station, they need to have permissions to that folder.
To synchronize the folders with your Cloud station client on your computer, click on the windows task bar and then right click on the Cloud Station icon:
On the menu, click on “Settings” and in the new window click on “Sharing”, the folders you want to synchronize and “Apply”:
And you are done,
Enjoy!!
Synoguide 
You ask to
Once you are in Cloud Station, click on “Sharing”:
But I do not have any “Sharing” Icon.
I have a DS214SE and a DSM 5.2-5592 Update 3
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Hi David,
Synology has updated CloudStation and the “Sharing” tab is not available anymore. Click on Privileges instead. I will update the blog later today, thanks for letting me know,
Ruth
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For cloudstation 3.2 and higher, refer to this tutorial:
https://synoguide.com/share-file-station-folders-with-cloud-station-3-2/
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There’s no privileges either.
All I see is sync tasks, sync log, download history, global settings.
When I try to add a sync task all folders on the cloudstation are greyed out.
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Hi David,
Are you referring to Cloud Station or Cloud Sync?
Are you trying to sync your dropbox files with your Diskstation?
/Ruth
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I was trying to add a sync between directory on PC and on Diskstation. After trying for a couple of hours I found I could create a new shared folder in the root of diskstation, and it would show up in the right hand panel in sync tasks creation on cloudstation on PC. So I was able to add a sync using sync tasks -> create. I haven’t tried creating a shared folder on diskstation that is not root but hope it is possible.
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Hi David,
You can only sync root folders, maybe I should have specified that better. You can share files, but not sync them on non-root folders.
/Ruth
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Thanks Ruth. That is clear and saves me a bunch of time experimenting.
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Glad to help, I have updated the post, hopefully it will help others.
Thanks for letting me know,
Ruth
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I have created a shared folder “A”, on my Synology DS918+ but, when I open Cloud Station Server, I can’t see that folder… permissions are ok.
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Have you enabled the folder in the cloud station app?
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