You can combine several objects into a group so that they act as a single object. You can move and transform all objects in a group as a single unit. You can also change the properties (for example, line size, fill colour) of all objects in a group as a whole or for individual objects in a group. Groups can be temporary or assigned:
您可以将多个对象合并到一个组合中，使它们能作为单个对象进行操作。您可以将组合中所有的对象作为单个单位进行移动和变换。也可以将组合中所有的对象作为一个整体来修改属性（例如，线条大小，填充颜色），或对组合中的单个对象修改属性。组合可以时临时的，也可以是指定的。