This is a feature we have all been able to use for a good while. However, you can now share access to eachothers library’s at the same time. Not only that but you will be able to store everybodys saved files seperately over the cloud. They’ve also added the ability to do this offline.

Multiple features will also be added to parental control as well. To take advantage of these features today you will need to follow the instructions on steams FAQ page. I’ve added the link below.

https://store.steampowered.com/news/app/593110/view/4149575031735702628