Selects the schematic nodes of the current item selection. Install to <scripts dir>/lxserv and run the command ffr.selectSchmNodes

selectSchematicNodes.py

#!/usr/bin/env python

import lx
import lxu.select
import lxu.command

class SelectSchmNodes_Cmd(lxu.command.BasicCommand):
	def __init__(self):
		lxu.command.BasicCommand.__init__(self)

		self.dyna_Add('distance', lx.symbol.sTYPE_DISTANCE)
		self.dyna_Add('item', '&item')
		self.basic_SetFlags(1, lx.symbol.fCMDARG_OPTIONAL)

	def cmd_UserName(self):
		return 'Select Schematic Nodes'

	def cmd_Tooltip(self):
		return 'Select the schematic nodes for the current item selection.'

	def basic_ButtonName(self):
		return 'Select Schematic Nodes'

	def cmd_Flags(self):
		return lx.symbol.fCMD_MODEL | lx.symbol.fCMD_UNDO

	def basic_Execute(self, msg, flags):
		scene = lxu.select.SceneSelection().current()
		graph = lx.object.ItemGraph (scene.GraphLookup ('schmItem'))

		sel_svc = lx.service.Selection()
		nodeType = sel_svc.LookupType(lx.symbol.sSELTYP_NODE)
		itemType = sel_svc.LookupType(lx.symbol.sSELTYP_ITEM)
		nodeSelTrans = lx.object.NodePacketTranslation(sel_svc.Allocate(lx.symbol.sSELTYP_NODE))
		itemSelTrans = lx.object.ItemPacketTranslation(sel_svc.Allocate(lx.symbol.sSELTYP_ITEM))

		sel_svc.StartBatch()

		for x in xrange(sel_svc.Count(itemType)):
			item = itemSelTrans.Item(sel_svc.ByIndex(itemType, x))
			for n in xrange(graph.FwdCount(item)):
				sel_svc.Select(nodeType, nodeSelTrans.Packet(graph.FwdByIndex(item, n)))

		sel_svc.EndBatch()

lx.bless (SelectSchmNodes_Cmd, 'ffr.selectSchmNodes')