Creates selection handles
to distinguish parts of a model.
Once selected they can
be applied to a new layer for later use.
- When you pick a selection handle, all
other items that are not attached to the selection handle become
unpicked.
- If you drag over part of an object that
has a selection handle, the object is not picked unless you drag
over the selection handle itself.
In the SBD window, you
can pick any node, whether or not it has a selection handle.