Add An Assignment to Multiple Courses (not two sections of the same course)

This is a temporary workaround to use a feature that used to be in SIS, but that Blackbaud's summer 2020 update to the Assignment software removed. Hopefully this won't be needed if they fix the new software at some point. 

Go to Gradebook > Add Assignments and that will bring you to the "old" version of adding an Assignment.

Then at the bottom, click Add More > Classes > and you should be able to navigate to your other courses.