Is it possible to leave one person on stage when performing a group dance

No, you may not. Here's why:

A group dance is a social dance that is choreographed by a group of three or more people*** together. Group dancing is a common folk dance in many regions and cultures. This type of dance is usually performed at parties, school dances and, among other group activities.

There are many types of group dances, but they include square dancing, line dancing, and May pole dancing. Popular dances such as the Macarena, the Bunny Hop, and the Time Twister are also types of group dances. Group dances are usually performed at school dances. Many times, group dances can be choreographed from start to finish.