Is it possible to insert an interactive check box?
Is it possible to insert an interactive check box that a reader can check off when something is completed as in a list?
Yes. Bookry.com has a checklist widget (free for educators, paid for commercial purposes). You can also create your own checklist, if you require something other than what bookry offers, using the HTML5 widget - that uses a combination of HTML5, CSS3 and JavaScript.