What are these à [...]
The "ellipsis" is a common button you will find in various screens in innCenter. It means that there are multiple choices to select from. So if the ellipsis is next to the guest name, clicking it will open the Guest History so an existing profile can be selected. If next to the rooms, it will open the room assignment screen for edits to the reservation dates, number of guests, rate, room class and room number.