Show hidden objects

I know this is old but for anyone coming here looking for answers...

For xbox, put in your normal cheat commands. Go to OBJECTS BY FUNCTION and select SHOW ALL. It isn't going to show the complete hidden objects at this point. Here you go to your search bar and go in like you are going to type something but do not enter anything. No word no letter. Just press the triple line button as if you entered a search parameter. The items will all come up now. I theorize entering nothing is the equivalent of entering "debug" for the console. I do not know if this will work for Playstation.