Names - Entity Labels

The Names - Entity Labels setting panel allows you to choose an attribute by which the entity will be referred to throughout the application.

By default entities are referred to by their Id.
Entity labels appear in the first column of the Entities Table and as the Src and Dst columns of the Relations Table
Entity labels appear in the Node Appearance - Colors setting panel when coloring entities by relation.
Entity labels appear in the Filter - Attribute Filters setting panel when including/excluding entities by relation.