TYPO3 Core

I have a typo3 site running with 2 Main Pages. One is a temporary one and the other one is the "work in progress" site. Now what I want to do is to hide all the Pages belonging to the WIP-SIte for users that are not logged in in the backend. So I choose "Visibility Settings" from the Menu and then "Hide Page" and "Show at Login" which results in Guests beging able to view the page and authenticated users don't. I wonder and switch to "Hide at login" and it works as expected but NOT for subpages. The problem with show/hide might be a translation issue, I have to check that. However my usergroups are not shown in the dropdown-menu as well so I have no idea how to setup my site like I want...

(issue imported from #M1529)