There are several levels of cross references, according to the standard
		used and the type of symbol. The parameters of the symbol define the level of cross
		references.
		
			- Parent in Line Automatically generates a block including the
				graphical representation of the circuits and location information (drawing / column).
- Parent in Table Automatically generates a  block including the
				graphical representation of the circuits and location information (drawing / column) in the
				Parent.
- Child symbols Propagates the cross references information in the
				form of text in the #CROSS_REF attribute for the symbol.
- Same Level Propagates the cross references information in the form
				of text in the #CROSS_REF attribute for the symbol.
- Without Does not generate cross references.
- Default Representation Automatically generates a block including
				the graphical representation of the circuits and location information (drawing / column) in
				the Parent in Table.