Crates falling through Concrete floors on server startup

[SullysNQ 0]

To anyone out there, I am currently helping a friend work on an Arma3 server.  We made a custom building, having concrete floors well above the land underneath it.  In the building I've made, once ported over to the A3 server, the crates I've placed end up on the ground below the concrete floors.  I was hoping there was a way to keep the crates in a fixed position, allowing them to float on server startup.  Any ideas would be amazing.  

 

I used M3 Eden editor, and this is for an exile server.