If you are looking for a quick way to “automatically” make your project file conform to theirs… there’s not one… You can drag all of their clips with one move to your file as well. Just select them all and move them. The markers made will not show up in your project’s original sequence don’t think though…
Maybe if you posted where you need to get? Is their project file the same as yours only with the markers? ie. it has the same sequences etc as well as the clips?
Jerry