if i knew id let you know but i was unaware that objects have more function that just being spawned and sitting there. Could the lids of the dumpster be a seprate object entirely that attaches to the dumpster maybe? If i had more to offer I would but maybe someone else here knows.
Unfortunately I looked through basically every environment object and have yet to find children objects as .wdr files. And this is not specific to a dumpster and it's lid, that was an example. there are tons of .wft objects that come with extra children (for instance some trashbins have tops, some of them have planks in them etc)
I assume it would work the same way as spawning cars as they both use the same file type. I just want to know how I can spawn certain children from .wft. this is enterchangable between wft cars and wft objects
if you know how to spawn cars and choose what body mods there are maybe the same will work with the objects i want.