[Solved] Finding combined objects in S4S

Hello! First time poster here.

I am making a catalog organizing mod and I came across a strange problem.
There are "combined" objects in the catalog - objects that are made of two or three different objects.

For example, from Cats and Dogs Expansion:

• (pictured below) "Sign Marks the spot" that's made of "unfulfilled lawn sign" and "the comb and hound"
• "Look at me Billboard" --> "your neighborhood billboard" + "all good pets"
• "vets heart pets" --> "the last sign you'll ever see" + "good kitty and doggo"

And from Dine Out game pack:

• Texted and Tellised --> "unfulfilled sign" + "3 letter word sign" + "what a burger"

I can't find these objects in S4S, not even under the dubug items.

Anyone knows how to access these?