A group is a combination of certain things with the same characteristics. Groups exist in many ways, such as design software, chat software, social networking sites and so on. Each group will set a certain theme and related organizational rules. If the user needs to perform the same operation on multiple objects at the same time, consider combining these objects into a whole. After combining objects, each object in the group still retains its original attributes. When you move a group of objects, the relative positions between the objects remain the same. For example, the concept of group will be applied to flash production and Coredraw use.