To Select Elements Based on Their Attributes

Select the Element Selection tool.
In the tool settings window, click the Show Extended Settings icon.
Choose the desired attribute tab as the selection criterion.
In the attribute list box, click the attributes to be included in the selection criterion.
If elements exist with these attributes in the design file, the attributes are highlighted and displayed in the list box and the elements are selected. If you select an attribute that does not coincide with an element in the design file, the attribute is not highlighted.