The Custom Meeting Point function allows you to allocate a specific location to an attendee or an organization. This can be an exhibit booth, a private room or a particular area of your venue. All of the attendee's meetings (or meetings of all the attendees within an organization) will be assigned to that location, except when another attendee with a Custom Meeting Point requests the meeting. 

The system will only allocate one meeting per timepoint to each Custom Meeting Point. If you want to allow meetings to take place simultaneously at the location, add it to each attendee who is sharing the space.