Events Calendar Plugin – Change to "Past Events" and edit tab

I’ve tried looking for help on this, but haven’t found it (please redirect if I missed it). I use the Events Calendar plugin and for our site, we move what were once Upcoming Events to a new Menu page called Past Events for sorting/housekeeping purposes, but I do not know how the tab titles are created or why they aren’t editing to match the new Menu Page. IE When you open a new tab from a Past Event like this one (https://www.artweekboston.org/event/citi-center-party-in-a-box/) the tab starts with the description “Upcoming Events –” rather than just “Event” or “Past Events” — I’ve just started here, and I”m tasked to figure out how to properly archive. Thank you!