During software development it is very useful/efficient if you can reuse already existing code/artifacts. To enable this also for AutoFOCUS3 (AF3), we have implemented the concept of reuse libraries.
An overview over reuse libraries is given here and the contained reuse elements are explained here.
How to use the reuse functionality is shown here. All these actions can easily be accessed via a drag&drop panel and by a context menu.
A separate reuse view exist for a simple management of reuse libraries and their reuse elements.
All of this makes it easier, faster and safer to move AF3 elements from one project to another one (also on different devices) or to reuse recurring model parts in all projects.