The Hub’s private quarters use technology called a Room Regulator. This technology responds to an individual’s mental images to produce a surrounding that he or she will feel most comfortable in.
Star Masters #1 (1995)
The Hub is the mobile headquarters of The Charter, an organization determined to keep the peace between the civilized worlds of the universe. This vessel is approximately 500 miles in diameter and is the center of the Charter’s activities. At any given time there can be up to three million inhabitants stationed in the Hub to provide support services for the group.