Onedrive: How to not create a copy in the onedrive folder?

When i install onedrive, onedrive creates a folder where i can put files. When i put files in this folder, a copy is made in the folder. I don't want that. I would like to either:
- That the onedrive folder only has a reference to the file in the cloud, or
- That i can sync another folder on my mac with onedrive in the cloud

Any ideas?

Thanks.