Nodes can be selected according to whether they have a specific value for a particular node attribute. Node attributes are domain specific.
To select nodes by matching on their attributes:
A Select by Attribute dialog appears.
The value can contain wildcard characters: `?' will match any single character, and `*' will match a sequence of zero or more characters.
Toggle on this item if you want to search for nodes in the whole graph model, or toggle off this item to search only in the active window.
Nodes with an attribute value matching the specified one are selected.
A series of searches is possible; if you hold down the shift key while clicking Select, the matching nodes are added to the current selection (rather than replacing it).