Click the Preload a second time, a second set is loaded with the parented props correctly parented to the second copy of the chest.
Now that's cool.
No doubt you had to figure that out.
You have a lot of patience.
If I wanted to make a prop smartparented to a prop then it would be necessary to add that smartparent line with the code editor.
Would n't do it that way though.
Being 'modeling' oriented I would just make different props with or without contents if there were just a few items to be used as fillers.
Pretty easy to do once each prop has been created, by just adding them together in the modeling tool.
Then save them with different names and export the obj.
Same kind of process in Poser.
Once the materials have been done for each separate prop, then when the combined props are imported the mats can be applied from the library and the composite prop saved as a new prop.
The dog bowls would be a good candidate for separate objects because they are very simple geometries.
A water bowl and a food bowl.
That way they can be color coded so the dog can tell which is which.
Like a red bowl for food, and a blue bowl for water.
It's always good to keep the welfare of our animals in mind.
A good code editor is a valuable tool.
Some text editing apps won't handle code properly and it gets corrupted.
So be sure and use an editor that can.
The add actor section could be a little tricky.
Gotta pay close attention to that part.
What code editor do you use Satira? That info would also be helpful.