PBO files. How do I tell if an item is loot or structure.

[BlackGator]

I'm trying to create a bridge to the prison island on DayZ console. I tried spawning the Dam_Concrete_20_Floodgate in as loot as we can't edit the init.c file to add buildings on console. It didn't work. Can create a bridge using the GardenPlot and spawning them in as loot the whole way across the water and it works bit not the Dam_Concrete_20_Floodgate. Someone told me that in the PBO files the GardenPlot is classed as loot and the Dam_Concrete_20_Floodgate is classed as a structure. I know one of the mill buildings can be spawned as loot.

My question is, where would I find out what each item in game as classed as? I heard its in the PBO files but I dont know how to where to look. Thanks