...
It's suggested as a best practice to organize all of your Scene Objects in one Frame to keep things organized.
From the resource Resource pane, drag and drop the Scene Object Resource into your frameFrame. Typically this is a “Scene Objects” or “Setup” frameFrame.
When the + icon next to “Object” is chosen, your catalogs Catalogs will open and any objects in your Project will be available to be chosen. Choose one.
Repeat as many times as necessary:
...