Cloud Sync

Dear Community, 

I have a lot of data in the cloud already. My problem is, that the whole data is also stored locally. 

My hard drive is almost maxed out. 

So I would like to know how I can keep the folders in the cloud but remove them from the local hard drive

and not deleting any data. 

Can I tell "cloud sync" somehow to just sync some folders instead of all? 

Thank you all for your help