Can 2 people be in the same room in Cluedo?

Can 2 people be in the same room in Cluedo? No. Excerpt taken from Cluedo 2000 rules : “You cannot stay in the same room whilst trying to eliminate it from the investigation; you must leave it and re-enter each time. You cannot leave and re-enter a room on the same turn, even by a different door.” Can I only enter through a doorway where the door is open / ajar?

No. Excerpt taken from Cluedo 2000 rules : “You cannot stay in the same room whilst trying to eliminate it from the investigation; you must leave it and re-enter each time. You cannot leave and re-enter a room on the same turn, even by a different door.” Can I only enter through a doorway where the door is open / ajar?