Permissions "Currently Viewing" option

Permalink
I really need help with this one.
In the past I've set these permissions, but after upgrading a few times I can't change these any longer.

Sub-Page permissions. A grid of every groups/users and all the site page types is displayed allowing you to choose which groups can add what types of pages. Permissions are inclusive in concrete5, so as long as you're in ANY group that has rights available you will have access.

Mentioned on:http://www.concrete5.org/documentation/general-topics/simple-permis...

Is there a way to set these permissions anyway?
Maybe just by manually changing the url? (I dont have an old install with advanced permissions running)
Resetting the permissions?
...

Dutchwave