 Context Freezing in Moodle 3.6 An experimental setting allows administrators to freeze categories, blocks, courses or course content, making them read only. A new capability may be given to other users to allow them to do this in certain contexts, too. Here, our administrator can enable the setting from Development, Experimental Settings. She can choose whether admins can make changes even when this is enabled. It's possible to freeze courses in a whole category, making them read only for students and teachers. Alternatively, our administrator can go into an individual course and freeze the whole course. And now, when our teacher accesses the course, he is unable to turn on the editing and add new content. Finally, individual blocks may be frozen, such as this tags block. The course teacher won't then be able to delete or modify settings. And individual activities, such as this forum, can also be frozen. So when our student clicks into the forum, he does not see the reply button. To summarise, Context Freezing is a new experimental feature allowing admins and other permitted users to make categories, blocks, courses and course content read only.