One way to keep track of associated assets in MotionBuilder is to organize them into a group. Grouping assets together can keep large scenes well-organized, letting you easily select and view the related assets you need. Once stored in a group, you can manipulate the assets collectively, instead of manipulating each individual item.

For example, if you add all the nodes from a skeleton’s arm to a group, you can then scale, rotate, or translate the entire arm at the same time. When you manipulate a group, the proportions and positions of its objects are constrained.

Groups are very similar to sets. However, groups are different in that you can have a single object appear in multiple groups. Sets are exclusive, meaning any object can occur in only one set.

The Groups window gives you a way to quickly transform and select a collection of objects, as well as toggle their visibility.