Abstract: A building management system (BMS) includes a system library and a computing system coupled to the system library. The system library includes multiple relationships between multiple tags and multiple entities corresponding to units within the BMS. The computing system is configured to identify one or more entities in the system library. The computing system is configured to obtain tags associated with the one or more entities based on at least one relationship of the multiple relationships. The computing system is configured to receive an input regarding the one or more entities, and, responsive to the input, present via a user interface, a first view of tags corresponding to a first entity of the one or more entities and a second view of tags corresponding to at least one of the first entity or a second entity of the one or more entities.