Fundamentals > Creo Parametric User Interface > The Analysis Tab > Measuring Geometry > Measuring Entities > Using the Summary Mode > Example: Measuring Using Two Reference Entities
  
Example: Measuring Using Two Reference Entities
One Reference Entity
One measurement panel opens for the selected entity.
Two Reference Entities
With one reference entity selected, hold down the CTRL key and select a second entity. An individual measurement panel opens for the second entity, and a combined measurement panel for the two selected entities opens. The individual measurement panels are minimized.
You can expand the individual panels.