Primary referenced element

Each event frame references one or more elements. The event frame's Referenced Elements tab lists all elements that the event frame refers to. The main element referenced by the event frame is called the primary referenced element, and is indicated by a checkmark on the element icon:

By default, the first referenced element added is set as the primary referenced element, but you can change it by right-clicking on another element and selecting Set as Primary Element Reference.

Note: If you delete the reference to the primary element, PI System Explorer does not automatically set a new primary referenced element. You must select a new primary referenced element manually.