To relocate edges independent of their parent Entities object (belonging to a group or component,)
you must use these methods. (Note, they cause entries on the undo stack.)
These batch transform methods are more economical than moving independent primitives.
To relocate a group or component instance, with all it’s child entities, you can use …
Methods that add entries to undo stack …
Methods that do not put entries into undo stack …
Hi DanRathbun,
That is good to know. 
I wonder if any one else is interested in this topic.
Thank you.
Posting an example as the API doc example is (currently) incorrect
for the Sketchup::Entities#transform_entities method:
entities = Sketchup.active_model.entities
# Example 1 : Passing a list
ent1 = entities.add_line([0,0,0],[100,100,100])
ent2 = entities.add_line([0,0,0],[200,-10,-10])
ent3 = entities.add_line([100,100,100],[200,-10,-10])
transform = Geom::Transformation.new([100,0,0])
entities.transform_entities(transform, ent1, ent2, ent3)
# Example 2 : Passing an array
# We assume for this example that entities contains some faces.
entities_to_transform = entities.grep(Sketchup::Face)
unless entities_to_transform.empty?
transform = Geom::Transformation.new([10,10,10])
entities.transform_entities(transform, entities_to_transform)
end