I have a Sharepoint and there are sections where I'd like to restrict access to certain parts. I have done this on previous versions of sharepoint by removing the inheritance of permissions from the parent and then assigning each group to a folder.
I am trying to do this at the moment except I don't have the button to 'Stop Inheriting Permissions'. I understand it is usually between the 'Manage Parent' and 'Check Permissions' button on the top left of the screen on the manage permissions web page - sreenshot below
Could somebody help me to understand why the button isn't appearing?