Create (Create Assembly)
Create collects the selected items together to form a new Assembly item.
An Assembly is a Point item which also remembers a list of other items with which it has a (loose) association.
First select the items to be made into an Assembly.
Now select CAD > Assembly > Create.
Items in an Assembly can still be moved as individual items. Alternatively by clicking on the Assembly's origin, the whole Assembly can be moved as one Item.