hi gunter
在v4中我通常采用给对象共同命名的方式来实现分组，尽管整组一起选中只能在场景浏览器中完成，但是可以方便的进行重命名，并且不像用颜色那样眼花缭乱（In v4, I commonly group objects by assigning shared names. Although selecting the entire group is only possible in the scene browser, renaming is quite convenient, and it's less visually overwhelming than using colors.）