ItemType		text	Item type on Symbol
ItemName		null	Identifies Tnode for item name
SubItemName		text	Multiple Tnode for item name
ItemNumber		null	Identifies additional part of item name
ItemDesc		text	Item description on Symbol
Connection		text	Connection name on Terminal
Internal		null	Internal Netlines in components
NoPlot			null	Don't plot this entity
Branch			null	Branch Netline in a junction
Radius			real	Hide radius for a Terminal
Inherit			null	Inherit font/layer/depth for component Netlines
ItemClass		text	Item class for 'dumpnet' reporting
Snap			null	Indicates snap points on Symbols
SymPlacement		null	Identifies Cpoint for DEFINE SYMBOL command
SymName			text	Defines Symbol name
Connector		null	Identifies Symbol used as a Terminal connection point
DrawName		null	Identifies drawing name Tnode
AttPage			text	The name of a page template in symbols.def
Index			int	Index value
Goto			text	Goto page name
Previous		text	Previous drawing name
Next			text	Next drawing name
Forward			text	Forward drawing
Backward		text	Backward drawing
Popup			text	Popup symbol name
Position		real	Position data
GroupId			int	Integer group id
PopupId			int	Integer popup id
DrawingType		text	Drawing type identifier
ImageMin		null	Background image frame cpoints
ImageMax		null
Extents			real	Extent values
Static			null	Symbol ignores rotate
Label			text	Prompt for label text tnodes
BlockCopy		null	This symbol is a copy of a block

SelectMask		null	Identifes entity for select boundary
SelectBox		real	Select box extents
SelectName		text	Select box name - overides tag name
Module			text	DSPICE module name
Output			text	Name of source connection element
ConnType		int	Source output connection type
IaElement		int	Input array element
AnimGraphic		null	Animation graphic
NoTags			null	Stop DMMI setting TAG_NAME on select
RelLayer		null	On symbol cpoint for DT graphics
BaileyTag		int	Bailey tag number via INPUT BAILEY
BaileyCommand		text	Bailey DT command
Editable		null	Text variable is editable
ConditionalEdit		null	As above, but conditional using ACTION=EDITABLE
MenuSelect		null	Editable text[-node] can activate a menu
Vname			text	Variable name on text-nodes
XGrad			int	X axis graduation text-node
YGrad			int	Y axis graduation text-node
GroupSymbol		null	This symbol is permanent in group database drawing
MaskId			int	Identifier for dmmi select box
BGMimic			text	Bailey mimic name
FrameType		text	Identifies an array frame symbol
FrameTag		text	Array frame model tag
FrameSize		int	Size of array frame
FrameId			text	Array frame id for actions
ArrayLine		int	Line number of array frame text-node
ActionList		text	Actions to be executed for select box
ALPrefix		text	ActionList prefix value
Dependent		null	Used by animation to indicate a dependent child
Arrowhead		int		Identifies an arrowhead polygon
Offpage			null	Symbol represents an offpage connector
Jump			null	Symbol represents an offpage jump
HangingTag		null	Symbol represents a hanging tag connector
ObjectName		text	Object name for Advent converter