API Reference > imodeljs-common > Entities > ExternalSourceAttachmentRole ExternalSourceAttachmentRole Enumeration Beta The role that an attached ExternalSource plays. Members Name Value Description SpecifyContext 0 The attached ExternalSource provides context. SpecifyPart 1 The attached ExternalSource models a part of the whole. Defined in core/common/src/ElementProps.ts Line 405 Last Updated: 12 June, 2024