Hello!
That not is really possible the collections are already at center by default.
You have an example of what you want to do ?

Sorry it took so long to respond,
The issue with collections is that they are not really at the center by default?

For example here, the collection is offset from the center in blender (i have 50 other assets in the scene as well) and on export it's origin is offset by the offset that the collection is from the world origin.

My wish is that it would be good if there was a "move collection to world origin on export" function or something similar ?

Also I've also noticed that invisible/turned off assets in blender also get exported in a collection (this is undesirable)

You can send me the blender file? I will look about

light_collection_test_1.zip
Here, I've made a lighter version of the file, hope that's ok?