In any of your classes, click the Content tab to view the modules you have assigned to your class.  


To add content, click the Select Content button on the right.  

From here, you can select Veative modules or 360 videos, then filter by Course and Subject using the drop-down menus.  There is also a Search feature.

Select content by checking the box to the left of the item.  You can select all visible items by checking the top left box.

When you have selected your content, click Add to Class at the bottom right corner.