No, generally you're just dealing with pre-recorded videos. You might check out Udemy's quiz and assignments features though, as you might be able to think of creative ways to use them to achieve what you're after. Perhaps a quiz that shows your diagram at different stages, that allows students to select an answer at each stage? See: https://support.udemy.com/hc/en-us/articles/229231627-Create-a-Multiple-Choice-Quiz https://support.udemy.com/hc/en-us/articles/115008174307-How-to-Create-Assignments-For-Your-Course https://support.udemy.com/hc/en-us/sections/206458468-Creating-Content
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