To find out if an entity is already present in an Interaction Database, drag the symbol that represents the desired entity type in the Entity Legend into the Pathway Viewer and type the term by which this entity is most commonly referred to in the Search dialog that opens. The search results will display all the matching entities GeneSpring found in the Interaction Databases.

If the search result contains the entity you would like to add to the pathway, select the corresponding row and click OK.

If the entity of interest is not present in the search result, leave the Search dialog and use the Add entity icon in the Pathway View Toolbar to create the entity with the information you have about this new entity.