Indicate how to remove a cluster (or list of clusters, previously         
selected with Cluster->Select, when 
Global is pressed).
Scope
When the 
Scope is 
All, the cluster and all 
its contents is removed. This is the default.
When the 
Scope is 
Container, the cluster is removed but
its contents (child clusters, molecules, groups, planes, directions, 
atoms, bonds, orbitals, texts) is saved, linked to the cluster parent.
When the 
Scope is 
Contents, the cluster is preserved but 
all its contents (child clusters, molecules, groups, planes, directions, 
atoms, bonds, orbitals, texts) is removed. 
When the 
Scope is 
cluster, 
molecule, 
group, 
plane, 
direction, 
atom, 
bond, 
orbital
or 
text, these objects are removed from the cluster.
When the removed cluster was the current object,
the current layer becomes the new current object.
Clicking the mouse over a cluster in the current layer, its identification
is transported to the dialog and 
Ok is automatically pressed.
To recover the previous state press 
Undo.