Cut allows you to cut a
piece of the hierarchy and store it internally in Visaj's
clipboard. If you Cut a container, all its children
are "Cut" as well.
Copy works similarly
to Cut except that the original components are not deleted.
Paste allows you to
insert a piece of hierarchy that was previously cut or copied,
anywhere into the hierarchy.
Clear will delete any
portion of a hierarchy. WARNING: If a container is
selected, then all its children will be deleted.
Note that these functions work with multiple selections as well. If you cut, copy or clear a multiple selection, the operation will affect all the selections. In the case of cut and copy, a subsequent paste will result in all the cut or copied selections being pasted back. If you paste into a multiple selection, a copy of the clipboard will be added to each of the selections.