The Mass Action block allows instructors to perform actions upon multiple activities or resources, rather than having to perform repeated actions on individual items.
Step-by-step guide
From your main course page, Turn editing on and go to the Add a Block option (bottom of ‘drawer’ on left). From the Add a Block menu add Mass Actions.
When you add the Mass Actions block to your class and you are in edit mode, you will notice a small selection box appears under the “move” icon for each item in your course.
These check boxes allow you to select multiple items to perform any of the functions under the With selected menu. You can also use the top menu in the block to select all items within a section, and then use the functions under the With selected menu.