There are times when students have not submitted their work for an activity in Moodle. You have graded submissions from the rest of the class and you would now like to have a quick way to assign zeros for this assignment for the remaining students. This is especially desired for forums since the option to grade within the forum is limited to students who have posted content. There is a way to give students a zero for any graded activity. Here is how: 

1. In the Administration block, select 'Gradebook setup' under Course administration and in the window that opens, click the "View" tab.
   
   
   
   
2. Select the 'Single view' tab, then choose the activity from the 'Grade items' pulldown menu.
   
   
   
   
    
3. Below your list of students, check the box for 'Perform bulk insert'. In this case we want to only gives zeros for students who haven't already received a grade. So leave the defaults of 'Empty grades', and '0' for the insert value. Click 'Save'.