Simple Markup — Simple markup shows you what the document would look like with all suggested changes accepted (but they are not accepted yet) All Markup — All Markup shows all of the changes and all of the comments in the post No Markup — It will hide all the markups and will show the post in the original version * Markup by People — Show markup from specific people so you can see who changed which parts of the text, and then be able to switch to another person.