As Srujana mentioned, this is not available OOTB but might be achievable with some custom work. OOTB you could do 2 things: 1. Like  Jürgen mentions, a private category that houses the blog for which you could see member metrics in Community Analytics (CA->Content->scope to category->Members tab or use filters in other CA menus). The caveat here is that you will need to create and assign a special role to the members that need to access this category. 2. You could use the new Group Hubs feature and create a Closed or Hidden Group Hub for the members that need access to the blog. You will be able to control membership and have dedicated metrics for Group Hubs in Community Analytics. More on Group Hubs here. ... View more

Hi Lundehoj, Currently there is no out of the box setting to turn on/off the timestamp on blog articles but I suggest looking into possibly achieving this via customization. ... View more

Hi Toby,   It depends what you are looking to achieve with the move. If it's a public group, hiding from lists and menus will not make the group private. The group and it's content will still be searchable. Whoever has the direct URL will also be able to access it as well but it will simply not show up in any navigation menus, lists or components that you have in your community. If you make the group private, the group and its content will only be accessible to those who have access to that private area. Hope this helps! ... View more