Microsoft OneDrive is a very capable cloud storage and syncing option, but until now, folders shared with you couldn't be added to your OneDrive and synced on your computer like other OneDrive folders.
This week, Microsoft confirmed in a OneDrive user forum that shared folder syncing is rolling out. According to the rep:
How does it work? We have a new action on OneDrive, called “Add to my OneDrive.” Whenever you are using OneDrive on the web, or through the mobile app, you’ll see this when you are browsing content that others have shared with you. Clicking “Add to my OneDrive” will add that folder to your OneDrive. From then on, whenever you browse your OneDrive, you’ll be able to see any of the shared folders you’ve added. And on the sync client, when you select what folders to sync, you’ll see all the shared folders you’ve added. Select the shared folder(s) you want and they’ll immediately begin syncing to your PC or Mac.
This makes OneDrive much more functional for groups or even if you just want to share a folder with a family member.
The feature works on Mac as well as all Windows versions, however, weirdly enough, Windows 8.1 users will have to upgrade to Windows 10 to get the feature.