obj_arr = #()
 
-- collect object(s) to process
if selection.count == 0 then obj_arr = for o in geometry collect o	-- on all scene objs (only geometry obj, no shape, cam, light, dummy ...)
if selection.count != 0 then for o in selection do append obj_arr o	-- on obj(s) selection
 
 
if obj_arr.count != 0 then (
 
	for o in obj_arr do
	(
		n = o.name
 
 
		-- objects in group
		if (isGroupMember o AND classof o != Dummy) then (		-- if current obj is in a group AND is not a parent group (groupHead)
			n = o.parent.name	-- then get his parent name as layer name
			appendIfUnique obj_arr o.parent	-- add parent group to layer
		)--end if
 
 
		if LayerManager.getLayerFromName n == undefined			-- IF layer's name does not already exist
			then NewLayer = LayerManager.newLayerFromName n	-- THEN create a new layer with the object's name
		else NewLayer = LayerManager.getLayerFromName n			-- ELSE get the layer already named with object's name			
 
		NewLayer.addNode o
 
	)-- end loop
 
)else( messagebox ("no object to process !") )--end