Final answer:
To view more open objects in the work area of a simulation, click the 'OPEN SIMULATOR' button in the upper-right of the Interactive Labs box to start the simulation environment.
Step-by-step explanation:
To view more of the open objects in the work area by clicking the specific interface item in the Navigation pane, you would typically click something labeled as 'Expand', 'More', or a similar term, often represented by an icon like a double arrow or plus sign. However, according to the context provided, when you are ready to create a simulation, you should click on the 'OPEN SIMULATOR' button located in the upper-right corner of the Interactive Labs box. This action will launch the simulation environment where you can interact with the objects and settings relevant to your studies.