This question isn't about the CS, per se. It's more focused on Nifskope.

I have some models with a bunch of NiTriShapes and NiNodes that are all assigned to use the Bounding Box for collision calculations. However, I do not want the meshes to have collision whatsoever. I'm too lazy to go through every single file and change the flags to None.

I believe that you can attach no collision extra data (NiStringExtraData, named NCO with 7 bytes remaining. However, I modified https://dl.dropboxusercontent.com/u/42876609/Light_Ashl_Lantern_01.nif to have that extra data but now the game crashes every time I enter a cell with that mesh. What did I do wrong? Is this the way to easily make no collision meshes?

Thanks in advance, I hate dealing with collision.